ThinkWiki - User contributions [en]

Problem with high power drain in ACPI sleep

2005-08-22T15:04:33Z

Kubatyszko: /* Solutions */

Information about the problem of too high power drain in ACPI sleep mode.

==Problem description==
Several people realized that their ThinkPads eat up too much power while suspended to ram via ACPI. Compared to APM suspend to ram the power drain is experienced to be about 10 times as high, 2-5 Watts. This empties the battery within one or two days.

==Affected Models==

*Different symptoms have been reported for different models. In some models the origin of the power drain is obvious ([[Problem with LCD backlight remaining on during ACPI sleep|backlight on during suspend]]), in other models there is no obvious reason.

*On some models/configurations the higher power drain couldn't even be realized or was at least significantly lower.

*The T4x Thinkpad series (T40, T40p, T41, T41p, T42, T42p, T43, T43p) suspends to ram just fine, and there are no components that are obviously left powered up. The [[UltraBay]] and network light is on, but that is the same under windows (but under APM sleep to RAM those lights are OFF).

*This is a driver problem and can be fixed in software. For the T4x series, there is a fix available but it has not yet made its way into the official kernel (as of linux 2.6.12).

The following table gives an overview of the models suffering from the mysterious power drain. To find out about your model, you may use the following [[ACPI sleep power drain test script | script]]. It creates a file <tt>/var/log/battery.log</tt> which will tell you if you are affected or not.

{| border="1" cellspacing="0" cellpadding="2"
|-
! style="vertical-align:top;background-color:#ffcfbc;" | affected models
! style="vertical-align:top;background-color:#cfefcf;" | unaffected models
|-
| style="vertical-align:top;background-color:#fff0e0;" |
* {{R32}}
** 2658-BQG
* {{R40}}
** 2722-5MG
** 2722-B3G
** 2722-CDG
** 2897-GWU
* {{R50}}
** 1829-7RG
** 1829-6DM
** 1836-3SU
* {{R51}}
** 1829-9MG
** 1829-EHG
** 1829-R6G
** 1830-DG4
** 1836-Q6U
* {{T23}}
**2647-???
* {{T30}}
** 2366-81A
** 2366-97U
*{{T40}}
**2373-MU3
**2373-82U
**2373-92U
**2373-22G
**2373-19G
**2373-A1U
*{{T40p}}
**2373-G1U
**2373-G3U
**2373-G3G
**2373-G1G
**2373-G5G
* {{T41}}
**2379-DJU
**2373-9HU
**2373-4FG
**2373-4PG
**2373-1FG
**2373-2FG
**2373-2GG
**2373-6U4
**2373-7JU
**2373-CY0
**2373-TG5
* {{T41p}}
**2373-9FU
* {{T42}}
**2373-C19
**2373-CTO
**2378-DUU
**2373-FWG
**2374-ZEP
**2373-F2G
**[[2373-6ZG]]
* {{X21}}
| style="vertical-align:top;background-color:#e9f9e9;" |
*[[:Category:R50p | R50p]]
*[[:Category:T41 | T41]]
**2373-GEU
*[[:Category:T41p | T41p]]
**2373-GKG
**2373-GGG
**[[2373-GHG]]
*[[:Category:T42p | T42p]]
**[[2373-HTG]]
**[[2373-W6M]]
**[[2373-GTG]]
**[[2373-GXG]]
**2373-KXM
*[[:Category:T42 | T42]]
**[[2378-FVU]]
**[[2373-WBZ]]
**[[2378-RTU]]
*[[:Category:X40 | X40]]
**2371
*[[:Category:A22m | A22m]]
**2628
|}

==Affected Operating Systems==

*Linux, all flavours.
*Windows, for some models as well (only when using non-IBM drivers).
*FreeBSD (on the A22M)

==Status==
*The cause of the mysterious power drain is the radeon GPU, which requires extra steps to suspend properly. Unfortunately, this fix might break non-Thinkpad machines and therefore is not yet in the official kernel sources.

*The official bugzilla entry for the radeon suspend issue is in the [http://bugme.osdl.org/show_bug.cgi?id=3022 OSDL Bugzilla]. There you can find a patch which will solve the power drain issue.

{{WARN|This solution enables doing suspend-to-D2 on non-PPC-machines, which is not properly documented! Be careful and have a look at the discussion for kernel bug 3022 (see above) before applying the patch. By default, the patch enables the suspend-to-D2 only on machines where it is know to work. This behaviour can be overridden with a module option.}}

*Most certainly, the DSDT is not at fault. (Interesting to note: The DSDT from BIOS 3.13 (Nov 04) for the T42p compiles without bugs.)

*Some additional power savings can be achieved by turning off the wake-on-lan (<tt>ethtool -s eth0 wol d</tt>). The power drain of the wol feature is far smaller than the radeon bug, but can be noticeable.

==Solutions==
===For Thinkpads with Radeon graphic driver===

You must use a patched version of the radeon frame buffer, even if you are only interested in using the X window system. This modified radeon frame buffer then suspends the radeon chip correctly during ACPI sleep. This patch is not yet in the official (kernel.org) kernels.

The patch contains a list of Thinkpads where it is known to work, and by default only activates on these machines. If you think that your computer would profit from the patch as well, you can force it by including the module parameter <tt>radeon_force_sleep=1</tt>.

====Fedora Core 4 official kernel====

Fedora ships a patched radeon frame buffer (radeonfb.ko), but you must enable it yourself. [[:Category:Fedora | Fedora Core 4]] compiles it as a module rather than including it in the kernel, therefore you cannot activate it at boot time. You must arrange for the module to be loaded before X starts (for example, using an init script).

If you want to try the radeon frame buffer, you can enable it as follows (assuming you are at the gdm login screen). First, switch to a console (Ctrl-Alt-F1) and log in as root. Stop X:
init 3
Now you can load the module:
modprobe radeonfb radeon_force_sleep=1
Finally, resume X:
init 5

====Fedora Core 3/4 custom kernel====

For [[:Category:Fedora | Fedora Core]] there are precompiled patched kernels [http://www.sas.upenn.edu/~vbraun/computing/T41/kernel.html available]:

*[http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/i386/kernel-T4x-2.6.11.11-26.i386.rpm linux 2.6.11 for Fedora Core 3]

*[http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/i386/kernel-T4x-2.6.12.2-2.i386.rpm linux 2.6.12 for Fedora Core 4]

These kernels contain additional thinkpad-related patches, including software suspend2 and trackpoint support. Suspend to disk and suspend to ram should work with them. If your Thinkpad model is not yet whitelisted in the patch, you might have to enable the radeon fix by including the parameter <tt>video=radeonfb:radeon_force_sleep=1</tt> on the kernel command line.

If you try, please send the result (hang yes/no, battery drain yes/no) with the precise model number (for example, I have a IBM thinkpad T41 2379-DJU) to <tt>vbraun at physics dot upenn dot edu</tt>, it would be nice if your subject line would include "RADEONFB:" to make sure that I do not miss any emails.

====Technical Discussion====

The proposed solution is to remove the CONFIG_PPC_PMAC condition for enabling D2 sleep in drivers/video/aty/radeon_pm.c as discussed in [http://bugme.osdl.org/show_bug.cgi?id=3022 kernel bug 3022]. There you can also find patches doing this. The patches divide into unconditional ones like [http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/patch-2.6.11-rc2-radeonfb-D2.patch.bz2 this one for 2.6.11-rc2] and conditional ones. The conditional ones only do D2 on models where it has been reported to work, the unconditional ones force D2 sleep on every model and you might experience hangs on resume with those.

====Other====

It is possible that radeontool from http://fdd.com/software/radeon/ will help some people with this case.
(simply run radeontool light off before suspend and radeontool light on after resume).
radeontool patch for freebsd is here: http://www.init-main.com/radeontool.patch (by Takanori Watanabe).

I am now testing radeontool with my T42 (2373-6ZG)

===For other models without radeon graphics===
Nothing yet.

Category:T42

2005-08-11T16:01:56Z

Kubatyszko: /* Features */

{| width="100%"
|style="vertical-align:top" |
[[image:ThinkPadT40.jpg|ThinkPad T42]]
|style="vertical-align:top" |
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
=== ThinkPad T42 ===
This pages gives an overview of all ThinkPad T42 related topics.
==== Features ====
* On of the following processors:
** [[Intel Pentium M (Banias)]] 1.5 GHz
** [[Intel Pentium M (Dothan)]] 1.6, 1.7 or 1.8 GHz
* One of the following graphics controllers:
** [[ATI Mobility Radeon 7500]] with 32MB
** [[ATI Mobility Radeon 9000]] with 64MB
** [[ATI Mobility Radeon 9600]] with 64MB
* One of the following displays:
** 14.1" TFT display with 1024x768 resolution (XGA)
** 14.1" TFT display with 1400x1050 resolution (SXGA)
** 15.0" TFT display with 1024x768 resolution (XGA)
** 15.0" TFT display with 1400x1050 resolution (SXGA)
** 15.0" TFT display with 1600x1200 resolution (UXGA)
* 256, 512MB or 1GB memory standard, 2GB maximum
* 30, 40, 60 or 80GB HDD
* AD1981B AC'97 Audio controller
* [[Ethernet Controllers|Intel 10/100/1000 Ethernet]]
* [[UltraBay|UltraBay Slim]] with one of the following:
** DVD-ROM
** DVD-ROM/CD-RW Combo
** DVD-RW
* CDC slot with one of the following:
** [[IBM Integrated 56K Modem (MDC-2)]]
** [[IBM Integrated Bluetooth III with 56K Modem (BMDC-2)]]
* MiniPCI slot with one of the following:
** none (open)
** [[IBM 11b/g Wireless LAN Mini PCI Adapter]]
** [[IBM 11a/b/g Wireless LAN Mini PCI Adapter]]
** [[IBM 11a/b/g Wireless LAN Mini PCI Adapter II]]
** [[Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter]]
** [[Intel PRO/Wireless 2200BG Mini-PCI Adapter]]
* [[Embedded Security Subsystem|IBM Embedded Security Subsystem 2.0]]
* [[Active Protection System|IBM Active Protection System]]
* [[Integrated Fingerprint Reader]] on selected systems
</div>
|}
* [ftp://ftp.software.ibm.com/pc/pccbbs/mobiles_pdf/13n6243.pdf ThinkPad T40/p, T41/p, T42/p - Hardware Maintenance Manual (April 2004)] (5,391,719 Bytes)

[[Category:Models]]

2373-6ZG

2005-04-20T12:17:41Z

Kubatyszko: /* Software */

= IBM ThinkPad T42 2373-6ZG Specifications =

== CPU and Memory ==
{|
|Processor Manufacturer || Intel
|-
|Processor Class || (Pentium M Dothan)
|-
|Processor Speed || 1.7 GHz
|-
|Installed Memory || 512 MB
|-
|Maximum Memory || 2 GB
|-
|Memory Technology || DDR SDRAM
|-
|Cache Size || 2 MB
|-
|Installed Video Memory || 32 MB
|}

== Storage ==
{|
|Hard Drive Model || Fujitsu Atlas
|-
|Hard Drive Capacity || 40 GB
|-
|Included Drives || CD-RW / DVD Combo Drive
|}

== Display and Graphics ==
{|
|Display Size || 14.1 inch
|-
|Display Type || TFT active matrix
|-
|Graphics Processor || ATI MOBILITY Radeon 9600
|-
|Included Video Card || Graphics card - AGP 4x
|-
|Resolution ||1024 x 768 pixels
|-
|Max. External Resolution || 2048 x 1536 pixels
|}

== Battery ==
{|
|Battery Model || 6 cell
|-
|Battery Life || 4.5 hour(s)
|-
|Battery Type || Lithium ion
|}

== Communications and Networking ==
{|
|Bluetooth || Yes
|-
|Modem Speed || 56 Kbps
|-
|Network LAN || Intel Pro/1000
|-
|Network WLAN || Atheros AR5212 802.11abg rev.1 (aka IBM 802.11abg) MiniPCI card
|}

== Software ==
{|
|Shipped Operating System || Microsoft Windows XP Professional (Polish)
|}

== Connectors ==
{|
|Interface Provided ||Parallel Port, S-Video, VGA, Phone line, Headphone, Ethernet 10Base-T/100Base-TX/1000Base-T
|-
|Connectors ||2 x Hi-Speed USB - 4 pin USB Type A, 1 x parallel - IEEE 1284 (EPP/ECP) - 25 pin D-Sub (DB-25), 1 x display / video - VGA - 15 pin HD D-Sub (HD-15), 1 x infrared - IrDA, 1 x modem - phone line - RJ-11, 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45, 1 x display / video - S-video output - 4 pin mini-DIN, 1 x docking / port replicator, 1 x microphone - input - mini-phone mono 3.5 mm , 1 x audio - line-out/headphones - mini-phone stereo 3.5 mm
|}

== General Product Info ==
{|
|Input Devices || Keyboard, Touchpad, TrackPoint
|-
|Included Sound Card || Intel 82801DB (ICH4) rev.1
|-
|Weight || 4.85 lbs
|-
|Also known as || ...
|-
|Manufacturer Part No. || 23736ZG
|-
|Dimension || 1.2 in x 12.2 in x 10.9 in (HxWxD)
|}

[[Category:T42]]

Problem with high power drain in ACPI sleep

2005-04-20T12:17:12Z

Kubatyszko: /* Affected Models */

Information about the problem of too high power drain in ACPI sleep mode.

==Problem description==
Several people realised that their ThinkPads eat up too much power while suspended to ram via ACPI. Compared to APM suspend to ram the power drain is experienced to be about 10 times as high, 2-5 Watts. This empties the battery within one or two days.

==Affected Models==
*Different symptoms have been reported for different models. In some models the origin of the power drain is obvious ([[Problem with LCD backlight remaining on during ACPI sleep|backlight on during suspend]]), in other models there is no obvious reason.
*On some models/configurations the higher power drain couldn't even be realized or was at least significantly lower.
*The T4x thinkpad series (T40, T40p, T41, T41p, T42, T42p) suspends to ram just fine, and there are no components that are obviously left powered up. The ultrabay and network light is on, but that is the same under windows (but under APM sleep to RAM those lights are OFF).
The following table gives an overview of the models suffering from the mysterious power drain. To find out about your model, you may use the following [[ACPI sleep power drain test script | script]]. It creates a file <tt>/var/log/battery.log</tt> which will tell you if you are affected or not.

One thing to keep in mind, though, is that some models only suffer this problem with certain software. For example, my T40 (2374-94U) has the high power drain issue with the stock Fedora Core 3. If I use one of the more recent kernels from [http://www.sas.upenn.edu/~vbraun/computing/T41/kernel.html Volker Braun's T-41 site], everything (suspend-to-RAM, suspend-to-disk) works just fine and my battery life seems much better than APM. In other words, just because you see this problem with your ThinkPad with your current software does not mean that your ThinkPad will doomed to always be affected. There are similar solutions for Debian-based systems too.

{| border="1" cellspacing="0" cellpadding="2"
|-
! style="vertical-align:top;background-color:#ffcfbc;" | affected models
! style="vertical-align:top;background-color:#cfefcf;" | unaffected models
|-
| style="vertical-align:top;background-color:#fff0e0;" |
*[[:Category:T23 | T23]]
**2647-???
*[[:Category:T40 | T40]]
**2373-MU3
**2373-82U
**2373-92U
**2373-22G
**2373-4PG
**2373-19G
**2373-A1U
*[[:Category:T40p | T40p]]
**2373-G1U
**2373-G3U
**2373-G3G
**2373-G1G
* [[:Category:T41 | T41]]
**2379-DJU
**2373-9HU
**2373-4FG
**2373-2FG
**2373-6U4
**2373-7JU
* [[:Category:T41p | T41p]]
**2373-9FU
* [[:Category:T42 | T42]]
**2378-DUU
**2373-FWG
**[[2373-6ZG]]
* [[:Category:R40 | R40]]
** 2722-5MG
** 2722-B3G
** 2897-GWU
* [[:Category:X21 | X21]]
* [[:Category:T30 | T30]]
** 2366-81A
** 2366-97U
* [[:Category:R50 | R50]]
** 1829-7RG
** 1829-6DM
** 1836-3SU
* [[:Category:R51 | R51]]
** 1829-EHG
** 1836-Q6U
| style="vertical-align:top;background-color:#e9f9e9;" |
*[[:Category:T41 | T41]]
**2373-GEU
*[[:Category:T41p | T41p]]
**2373-GKG
**2373-GGG
**[[2373-GHG]]
*[[:Category:T42p | T42p]]
**[[2373-HTG]]
**[[2373-W6M]]
**[[2373-GTG]]
**[[2373-GXG]]
**2373-KXM
*[[:Category:T42 | T42]]
**[[2378-FVU]]
**[[2373-WBZ]]
*[[:Category:R50p | R50p]]
|}

==Affected Operating Systems==

*Linux, all flavours.
*Windows, for some models as well (only when using non-IBM drivers).

==Status==
The cause of the problem is not really clear, yet.

A faulty DSDT might be responsible for the phenomenon. The thinkpad T4x DSDT has a few small bugs, none of which should cause the extra power drain. (Interesting to note: The DSDT from BIOS 3.13 (Nov 04) for the T42p compiles without bugs.)

There is a interesting discussion taking place in the [http://bugme.osdl.org/show_bug.cgi?id=3022 OSDL Bugzilla].

Update: it seems that the most significant difference can be made by properly turning off the video chip.

==Solutions==
===For Thinkpads with Radeon graphic driver===
A proposed solution is to remove the CONFIG_PPC_PMAC condition for enabling D2 sleep in drivers/video/aty/radeon_pm.c as discussed in [http://bugme.osdl.org/show_bug.cgi?id=3022 kernel bug 3022]. There you can also find patches doing this. The patches divide into unconditional ones like [http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/patch-2.6.11-rc2-radeonfb-D2.patch.bz2 this one for 2.6.11-rc2] and conditional ones. The conditional ones only do D2 on models where it has been reported to work, the unconditional ones force D2 sleep on every model and you might experience hangs on resume with those.

For [[:Category:Fedora Core | Fedora Core]] there's are precompiled patched kernels (2.6.11-rc2 based) available:
*[http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/kernel-DANGEROUS-T4x-2.6.11-8.i386.rpm kernel with unconditional patch applied]
*[http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/kernel-T4x-2.6.11-8.i386.rpm kernel with conditional patch applied].

If you try, please send the result (hang yes/no, battery drain yes/no) with the precise model number (for example, I have a IBM thinkpad T41 2379-DJU) to <tt>vbraun at physics dot upenn dot edu</tt>, it would be nice if your subject line would include "RADEONFB:" to make sure that I do not miss any emails.

'''ATTENTION!'''<br />
This solution enables doing suspend-to-D2 on non-PPC-machines, which is not tested at all and supposed to be the wrong thing to do!
Be careful and have a look at [http://bugme.osdl.org/show_bug.cgi?id=3022 the bugs discussion] before applying the patch.

===Other models===
Nothing yet.

[[Category:R40]] [[Category:R50]] [[Category:R50p]] [[Category:R51]] [[Category:R51p]] [[Category:T30]] [[Category:T40]] [[Category:T40p]] [[Category:T41]] [[Category:T41p]] [[Category:T42]] [[Category:T42p]] [[Category:X30]] [[Category:X31]] [[Category:X40]]

Problem with high power drain in ACPI sleep

2005-04-20T12:16:41Z

Kubatyszko: /* Affected Models */

Information about the problem of too high power drain in ACPI sleep mode.

==Problem description==
Several people realised that their ThinkPads eat up too much power while suspended to ram via ACPI. Compared to APM suspend to ram the power drain is experienced to be about 10 times as high, 2-5 Watts. This empties the battery within one or two days.

==Affected Models==
*Different symptoms have been reported for different models. In some models the origin of the power drain is obvious ([[Problem with LCD backlight remaining on during ACPI sleep|backlight on during suspend]]), in other models there is no obvious reason.
*On some models/configurations the higher power drain couldn't even be realized or was at least significantly lower.
*The T4x thinkpad series (T40, T40p, T41, T41p, T42, T42p) suspends to ram just fine, and there are no components that are obviously left powered up. The ultrabay and network light is on, but that is the same under windows (but under APM sleep to RAM those lights are OFF).
The following table gives an overview of the models suffering from the mysterious power drain. To find out about your model, you may use the following [[ACPI sleep power drain test script | script]]. It creates a file <tt>/var/log/battery.log</tt> which will tell you if you are affected or not.

One thing to keep in mind, though, is that some models only suffer this problem with certain software. For example, my T40 (2374-94U) has the high power drain issue with the stock Fedora Core 3. If I use one of the more recent kernels from [http://www.sas.upenn.edu/~vbraun/computing/T41/kernel.html Volker Braun's T-41 site], everything (suspend-to-RAM, suspend-to-disk) works just fine and my battery life seems much better than APM. In other words, just because you see this problem with your ThinkPad with your current software does not mean that your ThinkPad will doomed to always be affected. There are similar solutions for Debian-based systems too.

{| border="1" cellspacing="0" cellpadding="2"
|-
! style="vertical-align:top;background-color:#ffcfbc;" | affected models
! style="vertical-align:top;background-color:#cfefcf;" | unaffected models
|-
| style="vertical-align:top;background-color:#fff0e0;" |
*[[:Category:T23 | T23]]
**2647-???
*[[:Category:T40 | T40]]
**2373-MU3
**2373-82U
**2373-92U
**2373-22G
**2373-4PG
**2373-19G
**2373-A1U
*[[:Category:T40p | T40p]]
**2373-G1U
**2373-G3U
**2373-G3G
**2373-G1G
* [[:Category:T41 | T41]]
**2379-DJU
**2373-9HU
**2373-4FG
**2373-2FG
**2373-6U4
**2373-7JU
* [[:Category:T41p | T41p]]
**2373-9FU
* [[:Category:T42 | T42]]
**2378-DUU
**2373-FWG
**2373-6ZG
* [[:Category:R40 | R40]]
** 2722-5MG
** 2722-B3G
** 2897-GWU
* [[:Category:X21 | X21]]
* [[:Category:T30 | T30]]
** 2366-81A
** 2366-97U
* [[:Category:R50 | R50]]
** 1829-7RG
** 1829-6DM
** 1836-3SU
* [[:Category:R51 | R51]]
** 1829-EHG
** 1836-Q6U
| style="vertical-align:top;background-color:#e9f9e9;" |
*[[:Category:T41 | T41]]
**2373-GEU
*[[:Category:T41p | T41p]]
**2373-GKG
**2373-GGG
**[[2373-GHG]]
*[[:Category:T42p | T42p]]
**[[2373-HTG]]
**[[2373-W6M]]
**[[2373-GTG]]
**[[2373-GXG]]
**2373-KXM
*[[:Category:T42 | T42]]
**[[2378-FVU]]
**[[2373-WBZ]]
*[[:Category:R50p | R50p]]
|}

==Affected Operating Systems==

*Linux, all flavours.
*Windows, for some models as well (only when using non-IBM drivers).

==Status==
The cause of the problem is not really clear, yet.

A faulty DSDT might be responsible for the phenomenon. The thinkpad T4x DSDT has a few small bugs, none of which should cause the extra power drain. (Interesting to note: The DSDT from BIOS 3.13 (Nov 04) for the T42p compiles without bugs.)

There is a interesting discussion taking place in the [http://bugme.osdl.org/show_bug.cgi?id=3022 OSDL Bugzilla].

Update: it seems that the most significant difference can be made by properly turning off the video chip.

==Solutions==
===For Thinkpads with Radeon graphic driver===
A proposed solution is to remove the CONFIG_PPC_PMAC condition for enabling D2 sleep in drivers/video/aty/radeon_pm.c as discussed in [http://bugme.osdl.org/show_bug.cgi?id=3022 kernel bug 3022]. There you can also find patches doing this. The patches divide into unconditional ones like [http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/patch-2.6.11-rc2-radeonfb-D2.patch.bz2 this one for 2.6.11-rc2] and conditional ones. The conditional ones only do D2 on models where it has been reported to work, the unconditional ones force D2 sleep on every model and you might experience hangs on resume with those.

For [[:Category:Fedora Core | Fedora Core]] there's are precompiled patched kernels (2.6.11-rc2 based) available:
*[http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/kernel-DANGEROUS-T4x-2.6.11-8.i386.rpm kernel with unconditional patch applied]
*[http://carrot.hep.upenn.edu/~vbraun/kernel-T4x/test/kernel-T4x-2.6.11-8.i386.rpm kernel with conditional patch applied].

If you try, please send the result (hang yes/no, battery drain yes/no) with the precise model number (for example, I have a IBM thinkpad T41 2379-DJU) to <tt>vbraun at physics dot upenn dot edu</tt>, it would be nice if your subject line would include "RADEONFB:" to make sure that I do not miss any emails.

'''ATTENTION!'''<br />
This solution enables doing suspend-to-D2 on non-PPC-machines, which is not tested at all and supposed to be the wrong thing to do!
Be careful and have a look at [http://bugme.osdl.org/show_bug.cgi?id=3022 the bugs discussion] before applying the patch.

===Other models===
Nothing yet.

[[Category:R40]] [[Category:R50]] [[Category:R50p]] [[Category:R51]] [[Category:R51p]] [[Category:T30]] [[Category:T40]] [[Category:T40p]] [[Category:T41]] [[Category:T41p]] [[Category:T42]] [[Category:T42p]] [[Category:X30]] [[Category:X31]] [[Category:X40]]

2373-6ZG

2005-04-20T12:15:32Z

Kubatyszko: /* General Product Info */

= IBM ThinkPad T42 2373-6ZG Specifications =

== CPU and Memory ==
{|
|Processor Manufacturer || Intel
|-
|Processor Class || (Pentium M Dothan)
|-
|Processor Speed || 1.7 GHz
|-
|Installed Memory || 512 MB
|-
|Maximum Memory || 2 GB
|-
|Memory Technology || DDR SDRAM
|-
|Cache Size || 2 MB
|-
|Installed Video Memory || 32 MB
|}

== Storage ==
{|
|Hard Drive Model || Fujitsu Atlas
|-
|Hard Drive Capacity || 40 GB
|-
|Included Drives || CD-RW / DVD Combo Drive
|}

== Display and Graphics ==
{|
|Display Size || 14.1 inch
|-
|Display Type || TFT active matrix
|-
|Graphics Processor || ATI MOBILITY Radeon 9600
|-
|Included Video Card || Graphics card - AGP 4x
|-
|Resolution ||1024 x 768 pixels
|-
|Max. External Resolution || 2048 x 1536 pixels
|}

== Battery ==
{|
|Battery Model || 6 cell
|-
|Battery Life || 4.5 hour(s)
|-
|Battery Type || Lithium ion
|}

== Communications and Networking ==
{|
|Bluetooth || Yes
|-
|Modem Speed || 56 Kbps
|-
|Network LAN || Intel Pro/1000
|-
|Network WLAN || Atheros AR5212 802.11abg rev.1 (aka IBM 802.11abg) MiniPCI card
|}

== Software ==
{|
|Shipped Operating System || Microsoft Windows XP Professional
|}

== Connectors ==
{|
|Interface Provided ||Parallel Port, S-Video, VGA, Phone line, Headphone, Ethernet 10Base-T/100Base-TX/1000Base-T
|-
|Connectors ||2 x Hi-Speed USB - 4 pin USB Type A, 1 x parallel - IEEE 1284 (EPP/ECP) - 25 pin D-Sub (DB-25), 1 x display / video - VGA - 15 pin HD D-Sub (HD-15), 1 x infrared - IrDA, 1 x modem - phone line - RJ-11, 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45, 1 x display / video - S-video output - 4 pin mini-DIN, 1 x docking / port replicator, 1 x microphone - input - mini-phone mono 3.5 mm , 1 x audio - line-out/headphones - mini-phone stereo 3.5 mm
|}

== General Product Info ==
{|
|Input Devices || Keyboard, Touchpad, TrackPoint
|-
|Included Sound Card || Intel 82801DB (ICH4) rev.1
|-
|Weight || 4.85 lbs
|-
|Also known as || ...
|-
|Manufacturer Part No. || 23736ZG
|-
|Dimension || 1.2 in x 12.2 in x 10.9 in (HxWxD)
|}

[[Category:T42]]

2373-6ZG

2005-04-20T12:15:08Z

Kubatyszko: /* CPU and Memory */

= IBM ThinkPad T42 2373-6ZG Specifications =

== CPU and Memory ==
{|
|Processor Manufacturer || Intel
|-
|Processor Class || (Pentium M Dothan)
|-
|Processor Speed || 1.7 GHz
|-
|Installed Memory || 512 MB
|-
|Maximum Memory || 2 GB
|-
|Memory Technology || DDR SDRAM
|-
|Cache Size || 2 MB
|-
|Installed Video Memory || 32 MB
|}

== Storage ==
{|
|Hard Drive Model || Fujitsu Atlas
|-
|Hard Drive Capacity || 40 GB
|-
|Included Drives || CD-RW / DVD Combo Drive
|}

== Display and Graphics ==
{|
|Display Size || 14.1 inch
|-
|Display Type || TFT active matrix
|-
|Graphics Processor || ATI MOBILITY Radeon 9600
|-
|Included Video Card || Graphics card - AGP 4x
|-
|Resolution ||1024 x 768 pixels
|-
|Max. External Resolution || 2048 x 1536 pixels
|}

== Battery ==
{|
|Battery Model || 6 cell
|-
|Battery Life || 4.5 hour(s)
|-
|Battery Type || Lithium ion
|}

== Communications and Networking ==
{|
|Bluetooth || Yes
|-
|Modem Speed || 56 Kbps
|-
|Network LAN || Intel Pro/1000
|-
|Network WLAN || Atheros AR5212 802.11abg rev.1 (aka IBM 802.11abg) MiniPCI card
|}

== Software ==
{|
|Shipped Operating System || Microsoft Windows XP Professional
|}

== Connectors ==
{|
|Interface Provided ||Parallel Port, S-Video, VGA, Phone line, Headphone, Ethernet 10Base-T/100Base-TX/1000Base-T
|-
|Connectors ||2 x Hi-Speed USB - 4 pin USB Type A, 1 x parallel - IEEE 1284 (EPP/ECP) - 25 pin D-Sub (DB-25), 1 x display / video - VGA - 15 pin HD D-Sub (HD-15), 1 x infrared - IrDA, 1 x modem - phone line - RJ-11, 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45, 1 x display / video - S-video output - 4 pin mini-DIN, 1 x docking / port replicator, 1 x microphone - input - mini-phone mono 3.5 mm , 1 x audio - line-out/headphones - mini-phone stereo 3.5 mm
|}

== General Product Info ==
{|
|Input Devices || Keyboard, Touchpad, TrackPoint
|-
|Included Sound Card || Intel 82801DB (ICH4) rev.1
|-
|Weight || 4.85 lbs
|-
|Also known as || ...
|-
|Manufacturer Part No. || 23739XU
|-
|Dimension || 1.2 in x 12.2 in x 10.9 in (HxWxD)
|}

[[Category:T42]]

2373-6ZG

2005-04-20T12:14:45Z

Kubatyszko:

= IBM ThinkPad T42 2373-6ZG Specifications =

== CPU and Memory ==
{|
|Processor Manufacturer || Intel
|-
|Processor Class || (Pentium M Dothan)
|-
|Processor Speed || 1.7 GHz
|-
|Installed Memory || 512 MB
|-
|Maximum Memory || 2 GB
|-
|Memory Technology || DDR SDRAM
|-
|Cache Size || 2 MB (correct if wrong, not sure)
|-
|Installed Video Memory || 32 MB
|}
== Storage ==
{|
|Hard Drive Model || Fujitsu Atlas
|-
|Hard Drive Capacity || 40 GB
|-
|Included Drives || CD-RW / DVD Combo Drive
|}

== Display and Graphics ==
{|
|Display Size || 14.1 inch
|-
|Display Type || TFT active matrix
|-
|Graphics Processor || ATI MOBILITY Radeon 9600
|-
|Included Video Card || Graphics card - AGP 4x
|-
|Resolution ||1024 x 768 pixels
|-
|Max. External Resolution || 2048 x 1536 pixels
|}

== Battery ==
{|
|Battery Model || 6 cell
|-
|Battery Life || 4.5 hour(s)
|-
|Battery Type || Lithium ion
|}

== Communications and Networking ==
{|
|Bluetooth || Yes
|-
|Modem Speed || 56 Kbps
|-
|Network LAN || Intel Pro/1000
|-
|Network WLAN || Atheros AR5212 802.11abg rev.1 (aka IBM 802.11abg) MiniPCI card
|}

== Software ==
{|
|Shipped Operating System || Microsoft Windows XP Professional
|}

== Connectors ==
{|
|Interface Provided ||Parallel Port, S-Video, VGA, Phone line, Headphone, Ethernet 10Base-T/100Base-TX/1000Base-T
|-
|Connectors ||2 x Hi-Speed USB - 4 pin USB Type A, 1 x parallel - IEEE 1284 (EPP/ECP) - 25 pin D-Sub (DB-25), 1 x display / video - VGA - 15 pin HD D-Sub (HD-15), 1 x infrared - IrDA, 1 x modem - phone line - RJ-11, 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45, 1 x display / video - S-video output - 4 pin mini-DIN, 1 x docking / port replicator, 1 x microphone - input - mini-phone mono 3.5 mm , 1 x audio - line-out/headphones - mini-phone stereo 3.5 mm
|}

== General Product Info ==
{|
|Input Devices || Keyboard, Touchpad, TrackPoint
|-
|Included Sound Card || Intel 82801DB (ICH4) rev.1
|-
|Weight || 4.85 lbs
|-
|Also known as || ...
|-
|Manufacturer Part No. || 23739XU
|-
|Dimension || 1.2 in x 12.2 in x 10.9 in (HxWxD)
|}

[[Category:T42]]

Talk:2373-9XU

2005-04-20T12:14:15Z

Kubatyszko: Talk:2373-9XU moved to 2373-6ZG

#REDIRECT [[2373-6ZG]]

2373-6ZG

2005-04-20T12:13:51Z

Kubatyszko: 2373-6ZG

= IBM ThinkPad T42 2373-9XU Specifications =

== CPU and Memory ==
{|
|Processor Manufacturer || Intel
|-
|Processor Class || (Pentium M Dothan)
|-
|Processor Speed || 1.7 GHz
|-
|Installed Memory || 512 MB
|-
|Maximum Memory || 2 GB
|-
|Memory Technology || DDR SDRAM
|-
|Cache Size || 2 MB (correct if wrong, not sure)
|-
|Installed Video Memory || 32 MB
|}
== Storage ==
{|
|Hard Drive Model || Fujitsu Atlas
|-
|Hard Drive Capacity || 40 GB
|-
|Included Drives || CD-RW / DVD Combo Drive
|}

== Display and Graphics ==
{|
|Display Size || 14.1 inch
|-
|Display Type || TFT active matrix
|-
|Graphics Processor || ATI MOBILITY Radeon 9600
|-
|Included Video Card || Graphics card - AGP 4x
|-
|Resolution ||1024 x 768 pixels
|-
|Max. External Resolution || 2048 x 1536 pixels
|}

== Battery ==
{|
|Battery Model || 6 cell
|-
|Battery Life || 4.5 hour(s)
|-
|Battery Type || Lithium ion
|}

== Communications and Networking ==
{|
|Bluetooth || Yes
|-
|Modem Speed || 56 Kbps
|-
|Network LAN || Intel Pro/1000
|-
|Network WLAN || Atheros AR5212 802.11abg rev.1 (aka IBM 802.11abg) MiniPCI card
|}

== Software ==
{|
|Shipped Operating System || Microsoft Windows XP Professional
|}

== Connectors ==
{|
|Interface Provided ||Parallel Port, S-Video, VGA, Phone line, Headphone, Ethernet 10Base-T/100Base-TX/1000Base-T
|-
|Connectors ||2 x Hi-Speed USB - 4 pin USB Type A, 1 x parallel - IEEE 1284 (EPP/ECP) - 25 pin D-Sub (DB-25), 1 x display / video - VGA - 15 pin HD D-Sub (HD-15), 1 x infrared - IrDA, 1 x modem - phone line - RJ-11, 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45, 1 x display / video - S-video output - 4 pin mini-DIN, 1 x docking / port replicator, 1 x microphone - input - mini-phone mono 3.5 mm , 1 x audio - line-out/headphones - mini-phone stereo 3.5 mm
|}

== General Product Info ==
{|
|Input Devices || Keyboard, Touchpad, TrackPoint
|-
|Included Sound Card || Intel 82801DB (ICH4) rev.1
|-
|Weight || 4.85 lbs
|-
|Also known as || ...
|-
|Manufacturer Part No. || 23739XU
|-
|Dimension || 1.2 in x 12.2 in x 10.9 in (HxWxD)
|}

[[Category:T42]]