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	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54144</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54144"/>
		<updated>2012-12-14T09:40:29Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Data */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model !! Bios version (latest ?) !! Bug present in&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082 || 3.24 (latest) || Ubuntu 11.10 (32bits), Ubuntu 12.04 (32bits), ArchLinux (September 2012)&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
* Ask Ubuntu entry about the problem: http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54143</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54143"/>
		<updated>2012-12-14T09:39:45Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Data */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model !! Bios version (latest ?) !! Bug present in&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082 || 3.24 (latest) || Ubuntu 11.10, Ubuntu 12.04, ArchLinux (September 2012)&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
* Ask Ubuntu entry about the problem: http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54142</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54142"/>
		<updated>2012-12-14T09:39:33Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Data */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model !! Bios version (latest ?) !! Bug present in !&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082 || 3.24 (latest) || Ubuntu 11.10, Ubuntu 12.04, ArchLinux (September 2012) |&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
* Ask Ubuntu entry about the problem: http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54141</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54141"/>
		<updated>2012-12-14T09:39:18Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Data */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model !! Bios version (latest ?) || Bug present in |&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082 || 3.24 (latest) || Ubuntu 11.10, Ubuntu 12.04, ArchLinux (September 2012) |&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
* Ask Ubuntu entry about the problem: http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54140</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54140"/>
		<updated>2012-12-14T09:39:06Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Data */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model !! Bios version (latest ?) || Bug present in&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082 || 3.24 (latest) || Ubuntu 11.10, Ubuntu 12.04, ArchLinux (September 2012) |&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
* Ask Ubuntu entry about the problem: http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54139</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54139"/>
		<updated>2012-12-13T10:37:48Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* References */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
* Ask Ubuntu entry about the problem: http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54138</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54138"/>
		<updated>2012-12-13T10:37:11Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* ASPM */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
  $ dmesg | grep ASPM&lt;br /&gt;
  [    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
  [    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54137</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54137"/>
		<updated>2012-12-13T10:34:25Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* ACPI */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
[    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The patch available http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2 in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54136</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54136"/>
		<updated>2012-12-13T10:33:51Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* ACPI */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
[    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
The [[http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;br /&gt;
|patch available]] in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54135</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54135"/>
		<updated>2012-12-13T10:33:34Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* = Power Aware CPU scheduler */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
[    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ===&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The [[http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;br /&gt;
|patch available]] in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54134</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54134"/>
		<updated>2012-12-13T10:33:18Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Devices power saving off ===&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
Don't know if it could be a clue...&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
[    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ==&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
A kernel bug entry with similar behavior has been fixed: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The [[http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;br /&gt;
|patch available]] in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close, maybe the same bug is present in thinkpad-acpi ?&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54133</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54133"/>
		<updated>2012-12-13T10:29:48Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Fan control */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
  sudo rmmod thinkpad_acpi&lt;br /&gt;
  sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
  echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
== Devices power saving off ==&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
First, Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
I've also run 'powertop' and saw several other things:&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
[    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ==&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;br /&gt;
&lt;br /&gt;
Symptoms are high temperature when high usage of CPU, with reboot when more than 100°C (information extract from ACPITZ/1 entry). I found a bug entry in launchpad about wrong fan speed but even if I force the fan to max (see the bug description of the launchpad entry) the computer is still rebooting after one minute of high CPU usage.&lt;br /&gt;
&lt;br /&gt;
But I'm starting to suspect several bugs in my case. My battery has a lifetime of 2 to 3 hours, half of what I had before ubuntu 11.10 (~5 hours). So it maybe related to ASPM bug, but even with recent updates of the kernel I have still the problem. I've tried multiple kernel startup switchs fixup found with ubuntu 11.10 but nothing really changed. Abot ASPM, dmesg returns:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.160288] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
Maybe I need to try again with 12.04 ?&lt;br /&gt;
&lt;br /&gt;
Two last things: - I cannot open my computer to remove possible dust (computer owned by my company, guaranty yada yada...) - I saw somewhere possible GPU overheating (cannot found the link), anyone has such experience ?&lt;br /&gt;
&lt;br /&gt;
Any hint, clue or proposal welcomes...&lt;br /&gt;
&lt;br /&gt;
update 1&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
update 3&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54132</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54132"/>
		<updated>2012-12-13T10:29:12Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo rmmod thinkpad_acpi}}&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo modprobe thinkpad_acpi fan_control=1}}&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan}}&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
== Devices power saving off ==&lt;br /&gt;
&lt;br /&gt;
Tunables tab of powertop prints a lot of devices with important runtime (no economy energy mode ?):&lt;br /&gt;
&lt;br /&gt;
   Bad           Enable SATA link power management for /dev/sda&lt;br /&gt;
   Bad           NMI watchdog should be turned off&lt;br /&gt;
   Bad           Power Aware CPU scheduler&lt;br /&gt;
   Bad           VM writeback timeout&lt;br /&gt;
   Bad           Enable Audio codec power management&lt;br /&gt;
   Bad           Autosuspend for USB device Fingerprint Sensor [4-1]&lt;br /&gt;
   Bad           Autosuspend for USB device USB Receiver (Logitech)&lt;br /&gt;
   Bad           Autosuspend for USB device Android Phone (HTC)&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Memory Controller Hub&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C832 IEEE 1394 Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset MEI Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82567LF Gigabit Network Connection&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) HD Audio Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd xD-Picture Card Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation Ultimate N WiFi Link 5300&lt;br /&gt;
   Bad           Runtime PM for PCI Device Ricoh Co Ltd RL5c476 II&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 4&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 2&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode]&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5&lt;br /&gt;
   Bad           Runtime PM for PCI Device Intel Corporation 82801I (ICH9 Family) PCI Express Port 1&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
First, Turbo mode of the processor is always running 25% of the time:&lt;br /&gt;
&lt;br /&gt;
 Package             | CPU 0&lt;br /&gt;
 Turbo Mode  24.4%   | Turbo Mode  21.7%&lt;br /&gt;
 2.81 Ghz     1.8%   | 2.81 Ghz     1.6%&lt;br /&gt;
 2.14 Ghz     0.9%   | 2.14 Ghz     0.9%&lt;br /&gt;
 1.60 Ghz     3.3%   | 1.60 Ghz     3.3%&lt;br /&gt;
  800 Mhz    57.5%   |  800 Mhz    55.2%&lt;br /&gt;
 Idle        12.1%   | Idle        17.4%&lt;br /&gt;
&lt;br /&gt;
                     |            CPU 1&lt;br /&gt;
                     | Turbo Mode  24.1%&lt;br /&gt;
                     | 2.81 Ghz     1.8%&lt;br /&gt;
                     | 2.14 Ghz     0.9%&lt;br /&gt;
                     | 1.60 Ghz     3.2%&lt;br /&gt;
                     |  800 Mhz    54.5%&lt;br /&gt;
                     | Idle        15.5%&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
I've also run 'powertop' and saw several other things:&lt;br /&gt;
&lt;br /&gt;
=== ASPM ===&lt;br /&gt;
&lt;br /&gt;
Linux 3.X has a bug with ASPM with similar symptoms, but it not activated in my case:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
If I add pcie_aspm=force to kernel, I've the following output:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.000000] PCIe ASPM is forcibly enabled&lt;br /&gt;
[    0.197865] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
=== Power Aware CPU scheduler ==&lt;br /&gt;
&lt;br /&gt;
Changing cpu policy to powersave does not solve the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI OSI ===&lt;br /&gt;
&lt;br /&gt;
Using switch 'acpi_osi=Linux' (as [[http://askubuntu.com/a/75713/8296|described here]]) does not fix the problem.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;br /&gt;
&lt;br /&gt;
Symptoms are high temperature when high usage of CPU, with reboot when more than 100°C (information extract from ACPITZ/1 entry). I found a bug entry in launchpad about wrong fan speed but even if I force the fan to max (see the bug description of the launchpad entry) the computer is still rebooting after one minute of high CPU usage.&lt;br /&gt;
&lt;br /&gt;
But I'm starting to suspect several bugs in my case. My battery has a lifetime of 2 to 3 hours, half of what I had before ubuntu 11.10 (~5 hours). So it maybe related to ASPM bug, but even with recent updates of the kernel I have still the problem. I've tried multiple kernel startup switchs fixup found with ubuntu 11.10 but nothing really changed. Abot ASPM, dmesg returns:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[    0.160288] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
Maybe I need to try again with 12.04 ?&lt;br /&gt;
&lt;br /&gt;
Two last things: - I cannot open my computer to remove possible dust (computer owned by my company, guaranty yada yada...) - I saw somewhere possible GPU overheating (cannot found the link), anyone has such experience ?&lt;br /&gt;
&lt;br /&gt;
Any hint, clue or proposal welcomes...&lt;br /&gt;
&lt;br /&gt;
update 1&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
update 3&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54131</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54131"/>
		<updated>2012-12-13T10:23:42Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Clear the dust */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo rmmod thinkpad_acpi}}&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo modprobe thinkpad_acpi fan_control=1}}&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan}}&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
* looking with powertop, I see&lt;br /&gt;
   * in frequency stats: the turbo mode of both CPU are usually equal to 33% (without no high CPU usage from my applications)&lt;br /&gt;
   * in device stats: lot of my PCI Device are running at 100%, which seems important&lt;br /&gt;
&lt;br /&gt;
So I think we deal here with several bugs, one about the fan, but also one possibly with ASPM, which seems disabled on my computer:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54130</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54130"/>
		<updated>2012-12-13T10:22:59Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Fan control */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo rmmod thinkpad_acpi}}&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo modprobe thinkpad_acpi fan_control=1}}&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan}}&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
* looking with powertop, I see&lt;br /&gt;
   * in frequency stats: the turbo mode of both CPU are usually equal to 33% (without no high CPU usage from my applications)&lt;br /&gt;
   * in device stats: lot of my PCI Device are running at 100%, which seems important&lt;br /&gt;
&lt;br /&gt;
So I think we deal here with several bugs, one about the fan, but also one possibly with ASPM, which seems disabled on my computer:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
=== Clear the dust ===&lt;br /&gt;
&lt;br /&gt;
Finally, I cannot say about openint the laptop and trying to remove the dust, as the computer belong to my work with guaranty yada yada.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54129</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54129"/>
		<updated>2012-12-13T10:22:47Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: /* Fan control */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo rmmod thinkpad_acpi}}\\&lt;br /&gt;
{{cmdroot|sudo modprobe thinkpad_acpi fan_control=1}}\\&lt;br /&gt;
{{cmdroot|echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan}}&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
* looking with powertop, I see&lt;br /&gt;
   * in frequency stats: the turbo mode of both CPU are usually equal to 33% (without no high CPU usage from my applications)&lt;br /&gt;
   * in device stats: lot of my PCI Device are running at 100%, which seems important&lt;br /&gt;
&lt;br /&gt;
So I think we deal here with several bugs, one about the fan, but also one possibly with ASPM, which seems disabled on my computer:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
=== Clear the dust ===&lt;br /&gt;
&lt;br /&gt;
Finally, I cannot say about openint the laptop and trying to remove the dust, as the computer belong to my work with guaranty yada yada.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54128</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54128"/>
		<updated>2012-12-13T10:22:23Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power, 2 hours on normal usage) and reboots when CPU charge is important due to overheating (more than 100°). This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
&lt;br /&gt;
{{cmdroot|sudo rmmod thinkpad_acpi}}&lt;br /&gt;
{{cmdroot|sudo modprobe thinkpad_acpi fan_control=1}}&lt;br /&gt;
{{cmdroot|echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan}}&lt;br /&gt;
&lt;br /&gt;
But it is not a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my thinkpad T500 still reboots after less than one minute of high CPU (I didn't have this problem before Ubuntu 11.10).&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix ===&lt;br /&gt;
&lt;br /&gt;
The temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating.&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
* looking with powertop, I see&lt;br /&gt;
   * in frequency stats: the turbo mode of both CPU are usually equal to 33% (without no high CPU usage from my applications)&lt;br /&gt;
   * in device stats: lot of my PCI Device are running at 100%, which seems important&lt;br /&gt;
&lt;br /&gt;
So I think we deal here with several bugs, one about the fan, but also one possibly with ASPM, which seems disabled on my computer:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
=== Clear the dust ===&lt;br /&gt;
&lt;br /&gt;
Finally, I cannot say about openint the laptop and trying to remove the dust, as the computer belong to my work with guaranty yada yada.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
http://marc.info/?l=linux-acpi&amp;amp;m=132854533918079&amp;amp;w=2&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54127</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54127"/>
		<updated>2012-12-13T10:16:09Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power) and reboots when charge is important due to overheating (more than 100°).&lt;br /&gt;
&lt;br /&gt;
This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Trying to find a solution... ==&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
I'm not sure it's only a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my PC still reboots after several minutes of high CPU (I didn't have this problem before 11.10)&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
* looking with powertop, I see&lt;br /&gt;
   * in frequency stats: the turbo mode of both CPU are usually equal to 33% (without no high CPU usage from my applications)&lt;br /&gt;
   * in device stats: lot of my PCI Device are running at 100%, which seems important&lt;br /&gt;
&lt;br /&gt;
So I think we deal here with several bugs, one about the fan, but also one possibly with ASPM, which seems disabled on my computer:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
=== Clear the dust ===&lt;br /&gt;
&lt;br /&gt;
Finally, I cannot say about openint the laptop and trying to remove the dust, as the computer belong to my work with guaranty yada yada.&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix (which is not) ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
$ sudo rmmod thinkpad_acpi&lt;br /&gt;
$ sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
$ echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix (not very good but it works for me) ===&lt;br /&gt;
&lt;br /&gt;
I've discovered one more thing: the temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating. Still my battery lifetime is not exceeding 2 hours when it was between 4 to 5 hours before ubuntu 11.10.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
* Bug Launchpad entry: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;br /&gt;
&lt;br /&gt;
* Bug 42858 - thermal throttling doesn't seem to trigger on Thinkpad T420s: https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54126</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54126"/>
		<updated>2012-12-13T10:12:10Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power) and reboots when charge is important due to overheating (more than 100°).&lt;br /&gt;
&lt;br /&gt;
This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
=== Fan control ===&lt;br /&gt;
&lt;br /&gt;
I'm not sure it's only a problem with fan control. Whatever is the fan speed (disengaged and set manually to full speed with level 127) my PC still reboots after several minutes of high CPU (I didn't have this problem before 11.10)&lt;br /&gt;
&lt;br /&gt;
=== Turbo mode ===&lt;br /&gt;
&lt;br /&gt;
* looking with powertop, I see&lt;br /&gt;
   * in frequency stats: the turbo mode of both CPU are usually equal to 33% (without no high CPU usage from my applications)&lt;br /&gt;
   * in device stats: lot of my PCI Device are running at 100%, which seems important&lt;br /&gt;
&lt;br /&gt;
So I think we deal here with several bugs, one about the fan, but also one possibly with ASPM, which seems disabled on my computer:&lt;br /&gt;
&lt;br /&gt;
$ dmesg | grep ASPM&lt;br /&gt;
[ 0.160380] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Basically this is what I'm seeing on my i7 X220 - even though the CPU reaches 97 degrees with full speed fan - it stays in turbo mode no matter what, as verified with powertop. Maybe somebody now more about thinkpad throttling in turbo mode?&lt;br /&gt;
&lt;br /&gt;
=== Clear the dust ===&lt;br /&gt;
&lt;br /&gt;
Finally, I cannot say about openint the laptop and trying to remove the dust, as the computer belong to my work with guaranty yada yada.&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix (which is not) ===&lt;br /&gt;
&lt;br /&gt;
To set your fan to max:&lt;br /&gt;
$ sudo rmmod thinkpad_acpi&lt;br /&gt;
$ sudo modprobe thinkpad_acpi fan_control=1&lt;br /&gt;
$ echo &amp;quot;level 127&amp;quot; &amp;gt; /proc/acpi/ibm/fan&lt;br /&gt;
&lt;br /&gt;
=== Temporary fix (not very good but it works for me) ===&lt;br /&gt;
&lt;br /&gt;
I've discovered one more thing: the temperature does not exceed 75° when my laptop is on battery and so is not rebooting because of the overheating. Still my battery lifetime is not exceeding 2 hours when it was between 4 to 5 hours before ubuntu 11.10.&lt;br /&gt;
&lt;br /&gt;
=== ACPI ===&lt;br /&gt;
&lt;br /&gt;
This might be related to this bug report:&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858&lt;br /&gt;
&lt;br /&gt;
@Matthias the patch available in the comment number 5 of the bug report is already present in latest 12.04 kernel, so this is not the solution.&lt;br /&gt;
&lt;br /&gt;
But strangely the symptoms seem very close. I've added a comment in the bug report:&lt;br /&gt;
&lt;br /&gt;
https://bugzilla.kernel.org/show_bug.cgi?id=42858#8&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500 - type 2082&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
Launchpad entry:&lt;br /&gt;
&lt;br /&gt;
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54125</id>
		<title>Problem with Overheating then reboot since Ubuntu 11.10</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Problem_with_Overheating_then_reboot_since_Ubuntu_11.10&amp;diff=54125"/>
		<updated>2012-12-13T10:05:46Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: â†Created page with 'I'm trying to identify a bug present which plague several users.  == Symtoms ==  Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen po...'&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;I'm trying to identify a bug present which plague several users.&lt;br /&gt;
&lt;br /&gt;
== Symtoms ==&lt;br /&gt;
&lt;br /&gt;
Since Ubuntu 11.10, my T500 has reduced battery life (around 3 hours with low screen power) and reboots when charge is important due to overheating (more than 100°).&lt;br /&gt;
&lt;br /&gt;
This is clearly a software bug, as I didn't have this behavior in Ubuntu 11.04. It appears since 11.10 (first ubuntu release with Linux kernel 3.x).&lt;br /&gt;
&lt;br /&gt;
== Data ==&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; cellpadding=&amp;quot;2&amp;quot;&lt;br /&gt;
|+List of machines with the same problem&lt;br /&gt;
! Model&lt;br /&gt;
|-&lt;br /&gt;
| T500&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
Launchpad entry:&lt;br /&gt;
&lt;br /&gt;
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
	<entry>
		<id>https://www.thinkwiki.org/w/index.php?title=Known_Problems&amp;diff=54124</id>
		<title>Known Problems</title>
		<link rel="alternate" type="text/html" href="https://www.thinkwiki.org/w/index.php?title=Known_Problems&amp;diff=54124"/>
		<updated>2012-12-13T09:56:19Z</updated>

		<summary type="html">&lt;p&gt;Kartoch: Adding entry for problem with Overheating then reboot since Ubuntu 11.10&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{| width=&amp;quot;100%&amp;quot;&lt;br /&gt;
|style=&amp;quot;vertical-align:top;padding-right:20px;width:10px;white-space:nowrap;&amp;quot; | __TOC__&lt;br /&gt;
|style=&amp;quot;vertical-align:top&amp;quot; |&lt;br /&gt;
Information on known problems with certain ThinkPad models.&lt;br /&gt;
|}&lt;br /&gt;
==Display Problems==&lt;br /&gt;
*[[Problem with unusable console | Console unusable]] &amp;lt;tt&amp;gt;(models with savage video chipset: T2x, A22e)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with Pixel Error | Dead pixels on TFT displays]] &amp;lt;tt&amp;gt;(all models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with DVI throughput | DVI throughput on port replicators and docks]] &amp;lt;tt&amp;gt;(models from 2000-2004)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problems with fglrx | Problems with ATI proprietary fglrx display driver]] &amp;lt;tt&amp;gt;(ATI Radeon models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with garbled screen | Garbled Screen]] &amp;lt;tt&amp;gt;(T40, T41, T42, R32, R40, R50p, R51, A30, A31, A31p)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with broken inverter | Inverter broken]] &amp;lt;tt&amp;gt;(all models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with key and trackpoint markings on the display | Key and Trackpoint markings on display]]&lt;br /&gt;
*[https://bugs.freedesktop.org/show_bug.cgi?id=2187 Radeon 7500 &amp;quot;DynamicClocks&amp;quot; randomly hangs] &amp;lt;tt&amp;gt;(TP T4x, Xorg-X11 bug report)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with red display shadow | Red shadow on display]] &amp;lt;tt&amp;gt;(TP T41p)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with red tinted display | Red tinted display]] &amp;lt;tt&amp;gt;(TP 23)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with black X | Unmovable square black X in X]] &amp;lt;tt&amp;gt;(TP T2x)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with video related system lockup | System Lockups related to video adapter]] &amp;lt;tt&amp;gt;(TP T2x)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with video related system lockup II | System Lockups related to video adapter T42]] &amp;lt;tt&amp;gt;(TP T42, T42p)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with video blanks after lid close and open | Video blanks after closing and opening lid]] &amp;lt;tt&amp;gt;(X41)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with ati driver in xorg 6.9.x | System lockup soon after starting xorg 6.9.x ]] &amp;lt;tt&amp;gt;(TP T4x)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with video output switching | Video output switching]]&lt;br /&gt;
*[[Problem with LCD brightness buttons | Video brightness up keys don't work or cause crashes]]&lt;br /&gt;
*VGA-out will die and needs mainboard replacing &amp;lt;tt&amp;gt;(X61)&amp;lt;/tt&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Harddisk Drive related Problems==&lt;br /&gt;
*[[Problem with APS harddisk parking|APS harddisk parking]] &amp;lt;tt&amp;gt;(models featuring APS)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with too large harddrive|BIOS hangs with harddrive sized over 8G]] &amp;lt;tt&amp;gt;(560)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with hard drive clicking | Clicking Hard Drive]] &amp;lt;tt&amp;gt;(models with Hitachi's 5k80 hard drive)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with non-ThinkPad hard disks|Non-ThinkPad hard disks]] &amp;lt;tt&amp;gt;(T43, X41, R52)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problems with SATA and Linux|SATA and Linux]] &amp;lt;tt&amp;gt;(T43, X41, R52, Z60)&amp;lt;/tt&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Network Problems==&lt;br /&gt;
*[[Problem with 3Com 10/100 Ethernet card not being recognized|3Com 10/100 Ethernet card not recognized]] &amp;lt;tt&amp;gt;(models with that card)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with unauthorized MiniPCI network card|&amp;quot;Unauthorized&amp;quot; MiniPCI Wireless Network card error (Error 1802)]] &amp;lt;tt&amp;gt;(Recent TPs)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Cisco Aironet Wireless 802.11b]] fails to work with certain firmware versions&lt;br /&gt;
*[[Problem with error 01C9 - More than one Ethernet devices | Error 01C9: More than one Ethernet Devices are found (Atheros WLAN MiniPCI)]] &amp;lt;tt&amp;gt;(T23, T30, A31p, R40 and others)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with e1000: EEPROM Checksum Is Not Valid]] &amp;lt;tt&amp;gt;(T60, X60, may be others)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with e1000: 99.9% packet loss on 7.x drivers]] &amp;lt;tt&amp;gt;(Recent TPs)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with 3945ABG: Internal wifi cannot associate with AP]] &amp;lt;tt&amp;gt;(T60, probably others)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Need to disable V90/V92/56K modem speed]] ([[IBM_Integrated_Bluetooth_III_with_56K_Modem_(BMDC-2)|BMDC-2]] on X40)&lt;br /&gt;
&lt;br /&gt;
==Power Management, AC-adapter or Battery Problems==&lt;br /&gt;
*[[Problem with ThinkPad 600 batteries | 600 series Battery dying prematurely]] &amp;lt;tt&amp;gt;(TP 600/E/X)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Damage in 56W AC-Adapter, plastic housing melted |AC-Adapter damaged, plastic housing melted]] &amp;lt;tt&amp;gt;(240, 390, i and s models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problems with ACPI suspend-to-ram|ACPI suspend-to-ram]] &amp;lt;tt&amp;gt;(ACPI sleep troubles)&amp;lt;/tt&amp;gt;&lt;br /&gt;
**[[Problem with display remaining black after resume|Blank display after resume]] &amp;lt;tt&amp;gt;(various models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
**[[Problem with high power drain in ACPI sleep | High power drain in ACPI sleep]] &amp;lt;tt&amp;gt;(various models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
**[[Problem with LCD backlight remaining on during ACPI sleep | LCD backlight remaining on during ACPI sleep]] &amp;lt;tt&amp;gt;(various models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with fan noise | Fan noise]] &amp;lt;tt&amp;gt;(TP T4x/p, TP R5x/p)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with checking battery status | Checking battery status causes mouse to jerk around]] &amp;lt;tt&amp;gt;(R31)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Battery drains despite seemingly being charged]] &amp;lt;tt&amp;gt;(A/C adapter issues)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with high pitch noises | High pitch noises]] &amp;lt;tt&amp;gt;(several models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with CPU frequency scaling | CPU frequency scaling locks up when on AC power only]] &amp;lt;tt&amp;gt;(several models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with system turning itself on | Immediate restarts from suspend, hibernate, and halt]] &amp;lt;tt&amp;gt;(several models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Replacing your AC Adapter or AC/DC Combo adapter]] &amp;lt;tt&amp;gt;(many models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Sound Problems==&lt;br /&gt;
*[[Problem with broken sound on ThinkPad 600 | Broken sound on ThinkPad 600/E]] &amp;lt;tt&amp;gt;(TP 600/E/X, 770Z)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with audio jacks | Audio jacks not working properly]] &amp;lt;tt&amp;gt;(TP T43)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with ALSA audio output | No audio heard with kernel 2.6.11+/ALSA]] &amp;lt;tt&amp;gt;(TP T43, T40)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with audio clipping|Audio clipping]] &amp;lt;tt&amp;gt;(TP T43)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with no sound on ThinkPad R60e | No Sound on ThinkPad R60e and T60]] &amp;lt;tt&amp;gt;(R60e, T60)&amp;lt;/tt&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Misc Problems==&lt;br /&gt;
*[[System randomly freezes and requires hard reset]] &amp;lt;tt&amp;gt;(X61s and all newer systems including X,T,R,Z series)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with Bending / Twisting|Casing malformed by bending/twising]] &amp;lt;tt&amp;gt;(X41)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with failing memory slot]] &amp;lt;tt&amp;gt;(T30, some T2x and X3x models)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with Dock USB Ports | Dock USB Ports]] &amp;lt;tt&amp;gt;(T30/X21)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[High-pitch noise from AC-Adapter]] &amp;lt;tt&amp;gt;(T60/p)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with lm-sensors | lm_sensors kills ThinkPads]] &amp;lt;tt&amp;gt;(TP 570E, 770X/Z, 600E/X, 240, X20)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with USB 2.0 | USB 2.0 problems]] &amp;lt;tt&amp;gt;(T40/T41/X40)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Embedded Controller Firmware#Firmware_issues|Firmware issues]]&lt;br /&gt;
*[[Problem with hot surfaces|Problem with hot surfaces]] &amp;lt;tt&amp;gt;(T43)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with disabled VT]] &amp;lt;tt&amp;gt;(Z61t, X60, X60s)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Unable to create recovery cds when another python is installed on the system]] &amp;lt;tt&amp;gt;(T43p)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problems accessing cdrom drive]] &amp;lt;tt&amp;gt;(T400)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Overheating]] &amp;lt;tt&amp;gt;(X200)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with Overheating then reboot since Ubuntu 11.10]] &amp;lt;tt&amp;gt;(T500)&amp;lt;/tt&amp;gt;&lt;br /&gt;
*[[Problem with failing Zip drive]] &amp;lt;tt&amp;gt;(Zip 250 for Ultrabay 2000)&amp;lt;/tt&amp;gt;&lt;/div&gt;</summary>
		<author><name>Kartoch</name></author>
		
	</entry>
</feed>