Extending battery life on X200 - Revision history

Papertiger: Changed markup for external urls to the correct one

2012-05-19T13:46:22Z

Changed markup for external urls to the correct one

Rdemaria: /* Turning off the wireless radios */

2010-01-10T15:59:08Z

‎Turning off the wireless radios

JohnSullivan: /* Turning off the wireless radios */ missing >

2009-06-25T05:53:36Z

‎Turning off the wireless radios: missing >

JohnSullivan: /* Details */

2009-06-25T05:51:41Z

‎Details

Alain: /* Experimenting with lower voltages */

2009-03-05T05:46:20Z

‎Experimenting with lower voltages

Alain: /* Making the voltages stick */

2009-03-05T05:45:08Z

‎Making the voltages stick

Alain: /* Making the voltages stick */

2009-03-05T05:44:49Z

‎Making the voltages stick

Alain: /* Experimenting with lower voltages */

2009-03-05T05:43:17Z

‎Experimenting with lower voltages

Alain: /* Turning off the wireless radios */

2009-03-05T02:20:00Z

‎Turning off the wireless radios

Alain: /* Turning off the wireless radios */

2009-03-05T02:11:00Z

‎Turning off the wireless radios

@@ Line 12: / Line 12: @@
 * '''Removing packages that create unnecessarily frequent wake up interrupts.'''
 **These interrupts wake up the CPU, preventing it from staying in its most energy efficient state.
-**I used Powertop from [[www.lesswatts.org]] for this task.
+**I used Powertop from [http://www.lesswatts.org www.lesswatts.org] for this task.
 * '''Lowering the voltage supplied to the CPU.'''
 ** Lowering CPU voltage does ''not'' impact performance since the clock frequency is unaffected
-**I used phc patches and phctools available at [[www.linux-phc.org]] for this task.
+**I used phc patches and phctools available at [http://www.linux-phc.org www.linux-phc.org] for this task.
 *'''Turning off radios that are not needed''
 **My X200 has 3 wireless radios: Wifi, Bluetooth, Broadband wireless
 == Finding and removing high interrupt packages ==
-Install PowerTOP from [[www.lesswatts.org/projects/powertop/download.php | here]].
+Install PowerTOP from [http://www.lesswatts.org/projects/powertop/download.php here].
 Run PowerTOP as root (sudo powertop) and look for the packages that come up on top of the interrupt frequency list. These are the packages that wake up the CPU most frequently.
@@ Line 46: / Line 46: @@
 == Reducing CPU voltage ==
 ===Installing phc module patches===
-The phc module patches are available [[www.ubuntuforums.org/showthread.php?t=786402 | here]], make sure you get the version that matches you kernel version. You can easily check by typing uname -r in a console.
+The phc module patches are available [http://www.ubuntuforums.org/showthread.php?t=786402 here], make sure you get the version that matches you kernel version. You can easily check by typing uname -r in a console.
 You need not compile your own module, check the thread, users have posted already compiled versions of the acpi-cpufreg.ko module for most kernel versions.
@@ Line 70: / Line 70: @@
 ===Intalling phctools===
-Download them [[www.linux-phc.org/ | here]].
+Download them [http://www.linux-phc.org/ here].
 Unpack the package in a directory where you can conveniently access it. Use the install script (install.sh) to enable pctools to run without requiring a password.
-Also download [[www.linux-phc.org/viewtopic.php?f=9&t=16 | here]] the update which supports the Core2Duo CPU.
+Also download [http://www.linux-phc.org/viewtopic.php?f=9&t=16 here] the update which supports the Core2Duo CPU.
 Unpack the archive and copy the file to"inc/libs" within the PHCTool directory (replace the old one).

@@ Line 137: / Line 137: @@
 The hidden power hog is the 3G broadband modem (Ericsson F3507g), even when the 3G led is off. To completely shut down power to the modem:
-  sudo echo 0 > /sys/devices/platfom/thinkpad_acpi/wwan_enable
+  sudo echo 0 > /sys/devices/platform/thinkpad_acpi/wwan_enable
 There are scripts to do this automatically [[Ericsson_F3507g_Mobile_Broadband_Module | here]].

@@ Line 137: / Line 137: @@
 The hidden power hog is the 3G broadband modem (Ericsson F3507g), even when the 3G led is off. To completely shut down power to the modem:
-  sudo echo 0 /sys/devices/platfom/thinkpad_acpi/wwan_enable
+  sudo echo 0 > /sys/devices/platfom/thinkpad_acpi/wwan_enable
 There are scripts to do this automatically [[Ericsson_F3507g_Mobile_Broadband_Module | here]].

@@ Line 17: / Line 17: @@
 **I used phc patches and phctools available at [[www.linux-phc.org]] for this task.
 *'''Turning off radios that are not needed''
-**My X200 has 3 wireless radios: Wifi, Blutooth, Broadband wireless
+**My X200 has 3 wireless radios: Wifi, Bluetooth, Broadband wireless
 == Finding and removing high interrupt packages ==

@@ Line 91: / Line 91: @@
 DO NOT RUN THIS TEST WITH A CUSTOM PROGRAM TO CONTROL THE FAN, YOU COULD FRY YOUR SYSTEM. FIRST REVERT TO HW CONTROLLED FAN IF YOU MADE ANY CHANGES TO FAN CONTROL.
-Check that you are using "ondemand" as the frequency scaling governor. This provided for the lowest power consumption according to Intel. An easy way to do this is to use Frequency Scaling Monitor Gnome panel applet.
+Check that you are using "ondemand" as the frequency scaling governor. This governor delivers the lowest power consumption according to Intel. An easy way to do this is to use Frequency Scaling Monitor Gnome panel applet.
 Another way is to check:

@@ Line 126: / Line 126: @@
 One you have found the lowest VID's that your system can safely run with, enter them on phctools Voltages for both CPU0 and CPU1, then go to settings and click "restore VID's on load".
-All that is left is to make phctools restore your VID's each time you boot. Add the command
+All that is left is to make phctools restore your VID's each time you boot. Add the command:
   yourphcdirectory/phctools.sh background
 to your startup applications in System > Sessions. It will automatically start phctools, make it restore your VID's and quit.

@@ Line 101: / Line 101: @@
 On the Info tab, you will see your CPU identified and the available frequencies for this CPU:
-Mghz 2266Mhz 1600Mhz 800Mhz
+Mhz 2266Mhz 1600Mhz 800Mhz
 On the Voltage tab you will see the VID and corresponding voltage for each frequency as well as the difference from the default values.

← Older revision		Revision as of 02:20, 5 March 2009
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	[[Category:X200]]		[[Category:X200]]
−	[[Category:~~HOWTO~~]]	+	[[Category:HOWTOs]]

← Older revision		Revision as of 02:11, 5 March 2009
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	[[Category:X200]]		[[Category:X200]]
		+	[[Category:HOWTO]]