== Background ==

Intel Pentium M processors from the [[Intel Pentium M (Dothan)|Dothan]] and [[Intel Pentium M (Banias)|Banias]] families can be instructed to operate at voltage and clock frequencies lower than the nominal ones recommended by Intel and used by ThinkPads by default. Experience shows that the processor may continue working correctly at lower-than-nominal voltages and frequencies, thereby reducing power consumption, heat and fan noise.

In the Pentium M, speed and voltage are controlled by software (through the MSR registers). It is up to the operating system to choose the right voltage for each frequency. Normally this is done according to tables published by Intel or according to ACPI tables. However, this can be overriden - in the case of Linux, by a kernel patch.

{{WARN|Following this instructions will operate your CPU under conditions it was not designed for. Even if your system seems stable, it may still suffer transient faults leading to arbitrary data corruption. In addition, errors in following these instructions (or changes between processor models) may operate the CPU ''above'' its nominal parameters, which, if taken too far, can cause kernel panics or even possibly hardware damage}}

For an example of what may be achieved, consider these examples: when voltages on one ThinkPad {{T43}} were reduced by 20-30%, stable CPU temperature dropped by 7-10deg under both idle and burn-in conditions. Combined with [[how to control fan speed|fan speed control]], this greatly reduced the [[Problem with fan noise|problem with fan noise]]. On one user's ThinkPad {{R51}}, an undervolt brought the full-load processor temperature down from 87 degrees to 63 degrees while maintaining full stability. The effect was, however, negligible at idle.

{{NOTE|While under''volting'' has a clear measurable effect, it's not clear if under''clocking'' really works. <tt>/proc/cpuinfo</tt> reflects the underclocked frequency, but enabling debug output on <tt>cpufreq</tt> causes it to say things like "<tt>CPU frequency out of sync: cpufreq and timing core thinks of 533000, is 800000 kHz.</tt>" where the former is the chosen underclocked frequency and the latter is the documented minimum frequency. This discrepancy also causes [[Software Suspend 2]] to oops during suspend.}}

There are several methods to control CPU voltage in Linux, and currently all of them require a patched kernel.

==Alternative 0: linux-phc==

Use the [[linux-phc]] kernel patch. '''This is the recommended method, as it is most generic and best supported.'''
* [http://phc.athousandnights.de/ linux-phc home page]

The sysfs interface of linux-phc (version 0.3.0 or newer) requires you to specify VID (Voltage ID) numbers; see the documentation in the source package. For pre-Core Intel CPUs, VID is related to voltage (in mV) as follows: <tt>VID=(voltage-700)/16</tt>.

A typical configuration command would look something like this:

{{cmdroot|echo '27 22 16 10 3' > /sys/devices/system/cpu/cpu0/cpufreq/phc_vids}}

== Alternative 1: patch with hard-coded voltages ==
=== Instructions ===

# Determine the stable voltages for each frequency, using some overclocking/undervolting utility that has specific support for Pentium M ("Centrino") processors. It seems that no such utility exists for Linux. For windows, one good choice is [http://www.pbus-167.com/chc.htm Notebook Hardware Control (NHC)], which conveniently also includes a table of nominal frequencies and voltages (in its help file).<br> Ascertain that at the undervolted settings the CPU actually performs correct computation ([http://www.mersenne.org/freesoft.htm Prime95] in "Tortute Test" mode seems to be a good partial test emphasizing FPU and memory access).<br> Note that beside reducing voltages (undervolting), you can also try to add lower frequencies (underclocking). If you undervolt a particular frequency too much your machine is likely to crash, so try not to have any other programs open.
# Determine the model name string reported by the CPU, e.g., via the "<tt>Model name</tt>" line in {{path|/proc/cpuinfo}}, and likewise the <tt>cpu_family</tt>, <tt>model</tt> and <tt>stepping</tt>.
# Grab a copy of the example patch below and update it to reflect the parameters, frequencies and voltages you found.
# Apply the patch to your kernel (tested with 2.6.13.1 and 2.6.14-rc2).
# To prevent the ACPI table from overriding your table, disable the <tt>CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI</tt> kernel option.
# Compile and install the new kernel.

The changes should be active now. If you want to see debug information attesting to thus, do the following:

# Reboot in <tt>single</tt> mode.
# {{cmdroot|echo 2 > /sys/module/cpufreq/parameters/debug}}
# {{cmdroot|modprobe speedstep-centrino}}
# {{cmdroot|dmesg}} and check for the message "<tt>speedstep-centrino: found "Intel(R) Pentium(R) M processor </tt>..."

If you don't see that message, you got the <tt>cpu_id</tt> or <tt>model_name</tt> parmaeters wrong. If your system crashes, re-test the voltages and adjust accordingly.

Please report your results (including voltages)!

=== Linux kernel patch (example) ===

The following example shows how to undervolt a Pentium M 750 (1.86GHz) on a ThinkPad {{T43}}. As discussed above, the parameters are specific to this one CPU. You will need to experimentally find the correct settings for your own CPU and adjust the patch accordingly.

Note that the Pentium M 750 has a 533MHz FSB (quad-pumped 133MHz), hence the use of <tt>OP133</tt>. If you have a Pentium M with 400MHz FSB (i.e., quad-pumped 100MHz, found in [[Intel Pentium M (Banias)|Banias]] and older [[Intel Pentium M (Dothan)|Dothan]]) then in the voltage table change <tt>OP133</tt> to <tt>OP</tt>.

{{CodeRef|undervolt-pentium-m-2.6.13.1.patch}}

Don't forget to disable <tt>CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI</tt>.

==Alternative 2: patch with user-space control==

If you want to use the Ubuntu 2.6.15 Kernel, please have a look at this thread: http://ubuntuforums.org/showthread.php?t=146366

The [http://fabrice.bellamy.club.fr/bdz.undervolt.2005.10.22.a.patch bdz.undervolt.2005.10.22.a.patch] patch, written by Gentoo-Wiki user "Bdz", allows voltages to be changed without reboot.

It presents a userspace interface, as in the following example:
:{{cmdroot|cat /sys/devices/system/cpu/cpu0/cpufreq/voltage_table}}
:{{cmdresult|1356,1356,1356,1356,1356,1356,1356,1244,1116,988}}
:{{cmdroot|echo "1084,1084,1084,1084,1084,1084,1084,988,908,860" >/sys/devices/system/cpu/cpu0/cpufreq/voltage_table}}

The relevant [http://gentoo-wiki.com/HOWTO_Undervolt_a_Pentium_M_CPU page] on Gentoo-Wiki providues further information and some helpful hints and scripts for voltage adjustment.

When applying this patch be sure to keep the "ACPI tables for decoding frequency pairs" option -- this patch only allows adjustment of the voltages for the normal clock speeds as reported by the ACPI table in the BIOS. On some models (e.g., ThinkPad {{T43}}) this does not include all clock speeds supported by the processor.

=Initscript=
This is a Gentoo initscript for the patch from Gentoo-Wiki user "Bdz".

=== Configuration file ===
<bash>
# /etc/conf.d/undervoltage

# voltage table sysfs interface
VTABLE_SYSFS="/sys/devices/system/cpu/cpu0/cpufreq/voltage_table"

# switch back to DEFAULT_VTABLE if undervoltage is stopped? [yes/no]
SWITCH_BACK="no"

# pentium-m banias 1,7GHz default voltages
DEFAULT_VTABLE="1484,1308,1228,1116,1004,956"
# pentium-m banias 1,7GHz lowered voltages [ -208mV ]
MOD_VTABLE="1276,1100,1020,908,796,748"
</bash>

=== Initscript ===
<bash>
#!/sbin/runscript
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

sysfs_check() {

if ! [ -e ${VTABLE_SYSFS} ]; then
logger "No sysfs voltage_table present. Modifying vcore voltage failed."
eerror "It seems that the undervolting patch has not been applied to the kernel."
eerror "see http://gentoo-wiki.com/HOWTO_Undervolt_a_Pentium_M_CPU for further information"
return 1
fi
}

start() {
sysfs_check || return 1
ebegin "Switching to modified voltage table [${MOD_VTABLE}]"
echo ${MOD_VTABLE} > ${VTABLE_SYSFS}
eend $?
}

# I think it is not necessary to switch to the default voltage table on shutdown
stop() {
if [ $SWITCH_BACK = "yes" ]; then
ebegin "Switching back to default voltage table [${DEFAULT_VTABLE}]"
echo ${DEFAULT_VTABLE} > ${VTABLE_SYSFS}
eend $?
fi
}
</bash>

==Alternative 3: another patch with user-space control==

The [http://avkrok.net/nw8240/centrino-voltages.diff centrino-voltages.diff] patch, written by Rickard Holmberg, also provides user-space control. See [http://avkrok.net/nw8240/ here] and [http://mailman.linux-thinkpad.org/pipermail/linux-thinkpad/2005-December/030772.html here] for usage.

==Stress Testing==

This [[Undervolt Stress Testing Script|script]] illustrates a very conservative method to stress test your lowered voltage settings.

==Tested frequencies/voltages==

If you have done excessive testing with user defined frequencies (stable system for over a month).
and no lookups occur when computing primes with mprime http://mersenne.org/ (gentoo: 'emerge gimps')
you can post your frequencies here. But note that this is just a rough indication, since the stable values will differ between individual processors, even in the same model.

{| {{prettytable}}
! CPU Type !! GHz !! Frequency Steps
|-
| Pentium-M Banias || 1.6 || 1212,1084,956,860,796,748
|-
| Pentium-M Banias || 1.7 || 1276,1100,1020,908,796,748
|-
| Pentium-M Dothan || 1.4 || 924,892,860,828,796,764,732,700
|-
| Pentium-M Dothan || 1.86 || 1068,972,876,780,700
|-
| Pentium-M SL6F7 || 1.6 || 1196,1052,956,860,780,732
|-
| Pentium-M Dothan || 1.5 || 924,892,860,828,812,796,764,732,700
|-
| Pentium-M Dothan || 2.0 || 1084,940,844,764,748
|}

Following values were obtained with: (running at the same time)
<bash>
nice -n19 glxgears &
mplayer somedivx.avi &
cd /usr/src/linux && make -j2
</bash>
* note1: for pre-Core Intel CPUs, VID is related to voltage (in mV) as follows: VID=(voltage-700)/16 (or: voltage=(VID*16+700) mV)
* note2: when testing for stability you should pay attention to sound too, occasional distortions which disappear after bumping voltage a notch or two
* note4: if you use phc_vids for your script, then take only second number in each pair
{| {{prettytable}}
! Machine !! CPU Type !! GHz !! phc_controls (fid:vid)
|-
| {{T42}} || Pentium-M Dothan (735) || 1.7 || 17:19 14:12 12:8 10:4 8:1 6:1
|-
| {{X31}} || Pentium-M Banias (1.4) || 1.4 || 14:32 12:30 10:23 8:16 6:5 (fairly conservative)
|-
| {{X32}} || Pentium-M Dothan (745) || 1.8 || 18:26 16:20 14:15 12:11 10:6 8:2 6:1
|-
| {{X40}} || Pentium-M Banias LV (718) || 1.2 || 12:17 11:14 10:11 9:8 8:5 6:3
|-
| {{X41T}} || Pentium-M Dothan LV (758) || 1.5 || 15:15 14:13 13:11 12:9 11:7 10:5 9:3 8:2 6:2
|}

[[Category:Patches]]

SD Card slot

2007-12-19T03:16:42Z

KotCzarny: sdhc is supported too

{| width="100%"
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
The SD Card slot (Secure Digital) is found on select ThinkPads and Docking stations.

In addition to SD Cards, SD Card slots can also accept the older MMC (MultiMedia Card).
</div>
|}
__NOTOC__
* [[Wikipedia:Secure Digital card|Wikipedia article on SD Cards]]
* [[Wikipedia:Multimedia Card|Wikipedia article on MMC Cards]]

==PCI-based SD Card slot==
This implementation is called "SD Card with IO support", and supports in addition to regular SD memory cards also special SDIO cards (e.g. Bluetooth, WiFi, etc).

=== Linux support ===
lspci reports it as a Ricoh device with PCI ID 1180:0822 (X Series, Z60m, Z60t), or 1180:0841 (Z Series).

The [http://mmc.drzeus.cx/wiki/Linux/Drivers/sdhci sdhci project] has developed a driver that supports these and other SD controller chips. The driver has been reported to work on ThinkPad {{X40}}, {{X41}}, {{Z60m}}, {{Z60t}}, {{X60}} and {{X61}} models, and has been available in mainline kernel since 2.6.17-rc1. See also "[[How to get the internal SD-CARD working]]".

It works with SDHC cards too (at least on my {{X41_Tablet}} and linux 2.6.23.1).

=== Models featuring this Technology ===
* ThinkPad {{X40}}, {{X41}}, {{X41_Tablet}}
* ThinkPad {{X60}}, {{X60s}}, {{X60_Tablet}}, {{X61}}, {{X61s}}, {{X61_Tablet}}
* ThinkPad {{Z60m}}, {{Z60t}}

==USB based SD Card slot==
This implementation only supports SD Memory cards.

=== Linux support ===
Should be supported by the Linux USB Storage drivers (usb-storage).

=== Models featuring this Technology ===
* [[ThinkPad Advanced Dock]]

[[Category:Components]]

Intel Mobile Pentium II

2007-12-17T02:48:51Z

KotCzarny: note about cpu type used in 560z

Category:560Z

2007-12-17T02:40:59Z

KotCzarny: /* Standard Features */ cpu upgrade path

{| width="100%"
|style="vertical-align:top" |
[[image:ThinkPad560x.jpg|ThinkPad 560Z]]
|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 560Z ===
This page gives an overview of all ThinkPad 560Z related topics.
==== Standard Features ====
* [[Intel Mobile Pentium II]] 233 or 300 CPU
** note: it is possible to upgrade this cpu to higher speeds. 400mhz max i think, the only problem is finding it in "Mini Cartridge" package. scavenging one from hp or dell can be a right idea :)
* [[Neomagic MagicGraph128XD]] with 2MB
* 12.1" TFT display with 800x600 resolution
* 32MB or 64MB memory standard
* 4.0 or 6.4GB HDD
* [[CS4237|CS4237B]] Audio controller
* [[IrDA]] 1.1
* USB
* External 1.44MB FDD
* (2) Type II [[CardBus slot|CardBus slots]] or (1) type III
</div>
* [ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/56zhmm.pdf 560Z - Hardware Maintenance Manual (August 1998)] (678,047 Bytes)
|}

[[Category:Models]]

Need to disable V90/V92/56K modem speed

2007-11-23T01:16:37Z

KotCzarny: typo

Connection failure with the [[IBM_Integrated_Bluetooth_III_with_56K_Modem_(BMDC-2)|BMDC-2]] (Conexant softK56 / HSF) and latest windows driver (7.34.00.00)

For countless attempts, the modem stayed stuck at speed negotiation time, making a high pitch noise. Another, different laptop connects faster than 33600 in the exact same conditions.

Simple workaround: limit connection speed to 33600 by appending the following AT command: +MS=V34

Considering the number of similar web pages, this kind of issue seems quite common to a wide range of modem models.

Unofficial maximum memory specs

2007-11-22T04:13:06Z

KotCzarny: /* Tested Memory configurations */

Some ThinkPads are known to support more memory than their specs say. This page gathers information about those models, how much memory they can take and what special requirements that memory must fulfill.

Have a look at the [[Memory]] page for the official memory configs and partnumbers

==Tested Memory configurations==
The following table gives an overview of tested memory configurations that exceed the specified limits for that ThinkPad type.

{| border="1" cellspacing="0" cellpadding="2"
! ThinkPad !! max. Specs !! BIOS !! Embedded Controller !! Memory configuration successfully tested
|- style="vertical-align:top;"
| ThinkPad {{A31p}}<br />2653-R || 1 GB || 1.09 || 1.05 ||
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
|-
| ThinkPad {{T30}}<br />2366-92U || 1 GB || 2.08 || 1.06 ||
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
but see [[problem with T30 not booting with 1 GiB memory module]].
|-
| ThinkPad {{X31}} 2672-C2G || 1 GB || 3.02 || 1.08 ||
* 2 GB with 2 x 1 GB (Kingston KVR400X64SC3A/1G DDR400MHz)
* It boots with 1 bar.
newer documentation also states 2 GB, even original one did not
|-
| ThinkPad {{X31}} 2673-C2G || 1 GB || 3.02 || 1.08 ||
* 2 GB with 2 x 1 GB (Team Group INC. TSDR1024M400 DDR400MHz)
* It boots with 1 bar (1xTSDR1024M400) too.
|-
| ThinkPad {{X41}} 2528-5FU || 1.5 GB || 2.09 || 1.02 ||
* 2 GB with 1 x 2 GB (Transcend TS2GIB3847 DDR2 667 MHz)
BIOS claims 2.5 GB. Diagnostic POST tests only 2 GB. Linux and XP recognize 2 GB.{{footnote|1}}
|-
| {{X41_Tablet}} 1866-6HU || 1.5 GB || 2.03 || 1.02 ||
* 2 GB with 1 x 2 GB (Transcend JM667QSU-2G DDR2 667 MHz)
BIOS claims 2.5 GB. Diagnostic POST tests only 2 GB. Linux and XP recognize 2 GB.
|-
| ThinkPad {{240}}<br />2609-40U || 320MByte || IRETWWW76 || n/a ||
* Any PC100/256MByte memory in 16 Chip Configuration will do
|-
| ThinkPad {{570}}<br />2644-3AU || 320MByte || 1.16 IMET65WW 11/11/99 || n/a ||
* Kingston KTM-TP390X/256 256MB MODULE FRU 16P6327 - 16 Chips 8 each side
|-
| ThinkPad {{600}}<br /> ? || 288 mb || ? || ? ||
* 416 mb = 256 mb '''low density''' PC-100 SODIMM + 128 mb PC-66 SODIMM + 32 mb PC-66 onboard (Note: that which SODIMM you put in which slot matters. This was first reported working on the [http://zurich.csail.mit.edu/hypermail/thinkpad/2004-04/0797.html Thinkpad Mailing List], and it worked error-free for me when I tested it.
|-
| ThinkPad {{770}}x<br />9549|| 448MByte || 1.11 IIET42WW 09/10/99 || n/a ||
* 448MB = 256MB PC-100 + 128MB PC-66 + internal 64MB using IBM 256MB MODULE FRU 33L3070 PC 100 CL2 - 16 Chips 8 each side.
* 512MB = 2x256MB PC-100 + 64MB internal booted up as well. 512MB is due to 440LX-Chipset limitations, 64MB are overlapping or unused.
|-
|}
{{footnotes|
#There are unconfirmed reports about XP on X41 actually using 2.5 GB. Could be older BIOS or DDR2 533 MHz.
}}

==External Sources==
*[http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-55644 IBM's official Memory compatibility page]

User:KotCzarny

2007-11-20T09:07:51Z

KotCzarny:

*miau*

* My current thinkpads stable:
** x32, x41-tablet, 760l, i1300, i1500

* Previously owned:
** 560e, 560x, 560z, 570, 770x, t20, x31, x30

(i-series ones are not really a thinkpads but well..)

contact with me: tjosko _AT_ yahoo _DOT_ com

User:KotCzarny

2007-11-20T09:07:20Z

KotCzarny:

List of DMI IDs

2007-11-17T23:48:39Z

KotCzarny: added info about x32 2673m4u

{| width="100%"
|style="vertical-align:top;padding-right:20px;width:10px;white-space:nowrap;" | __TOC__
|style="vertical-align:top" |
This page maintains a database of [http://en.wikipedia.org/wiki/Desktop_Management_Interface DMI] information which can be used to identify ThinkPad models. It is intended as an aid for driver development.
{{HELP|We need more information about older models, especially those released before 2004. Please [[#Adding_entries|add your model]] to the database.}}
{{NOTE|If your ThinkPad is not using the [[BIOS Upgrade Downloads|latest BIOS]], and you would be willing to [[BIOS Upgrade|upgrade your BIOS]], please add your ThinkPad to this table twice: '''before''' and '''after''' the BIOS upgrade. This information helps us a great deal, so your contribution would be very appreciated.}}
|}

==DMI ID database==

<div style="font-size: 80%">
{| border="1" cellspacing="0" cellpadding="2"
|-
! Model
! <tt>system-<br />manufa<br />cturer</tt>
! <tt>system-<br />product-<br />name</tt>
! <tt>system-<br />version</tt>
! <tt>baseboard-<br />manufa<br />cturer</tt>
! <tt>baseboard-<br />product-<br />name</tt>
! <tt>baseboard-<br />version</tt>
! <tt>chassis-<br />manufa<br />cturer</tt>
! <tt>chassis-<br />version</tt>
! <tt>bios-<br />vendor</tt>
! <tt>bios-<br />version</tt>
! <tt>bios-<br />release-<br />date</tt>
! Embedded controller
! Notes
|-
! colspan=14 style="text-align:center;background:#efefef;" |
====Numbered series====
|-
| {{600E}} 2645-5AU
|| IBM || 26455AU || Not Available || IBM || 26455AU || Not Available || IBM || Not Available || IBM || INET36WW || 11/20/1999
||
||
|-
| {{600X}} 2645-5FU
|| IBM || 26455FU || Not Available || IBM || 26455FU || Not Available || IBM || Not Available || IBM || INET55WW || 11/30/1999
||
||
|-
! colspan=14 style="text-align:center;background:#efefef;" |

====A series====
|-
| {{A21m}} 2628-FSG
|| IBM || 2628FSG || Not Available || IBM || 2628FSG || Not Available || IBM || Not Available || IBM || KXET24WW (1.02b) || 12/19/2000
||
||
|-
| {{A21m}} 2628-FSG
|| IBM || 2628FSG || Not Available || IBM || 2628FSG || Not Available || IBM || Not Available || IBM || KXET36WW (1.09 ) || 05/08/2003
||
||
|-
| {{A21m}} 2628-GTU
|| IBM || 2628GTU || Not Available || IBM || 2628GTU || Not Available || IBM || Not Available || IBM || KXET29WW (1.03d) || 03/21/2001
||
||
|-
| {{A22p}} 2629-USG
|| IBM || 2629USG || Not Available || IBM || 2629USG || Not Available || IBM || Not Available || IBM || KYET36WW (1.09a) || 10/17/2002
||
|| {{WARN|Outdated BIOS}}
|-
| {{A31}} 2652-PBU
|| IBM || 2652PBU || Not Available || IBM || 2652PBU || Not Available || IBM || Not Available || IBM || 1NET15WW (1.09 ) || 04/06/2005
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1NHT04WW-1.01 ]-</nowiki>
||
|-
| {{A31p}} 2653H6U
|| IBM || 2653H6U || Not Available || IBM || 2653H6U || Not Available || IBM || Not Available || IBM || 1GET31WW (1.03 ) || 07/23/2002
||
|| {{WARN|Missing EC string, extremely outdated BIOS}}{{HELP|We need a report to know if the latest BIOS fixes the missing EC string}}
|-
! colspan=14 style="text-align:center;background:#efefef;" |

====G series====
|-
| {{G41}} 2881-75M
|| IBM || 288175M || ThinkPad G41 || IBM || 288175M || Not Available || IBM || Not Available || IBM || 1XET47WW (1.06 ) || 01/14/2005
||
||
|-
! colspan=14 style="text-align:center;background:#efefef;" |
====R series====
|-
| {{R40}} 2681-5UU
|| IBM || 26815UU || Not Available || IBM || 26815UU || Not Available || IBM || Not Available || IBM || 1OET57WW (1.23 ) || 03/23/2005
||
|| {{WARN|Outdated BIOS}}
|-
| {{R40}} 2681-HSG
|| IBM || 2681HSG || Not Available || IBM || 2681HSG || Not Available || IBM || Not Available || IBM || 1OET61WW (1.27 ) || 06/29/2006
||
|| {{WARN|Outdated BIOS}}
|-
| {{R40}} 2722-B3G
|| IBM || 2722B3G || Not Available || IBM || 2722B3G || Not Available || IBM || Not Available || IBM || 1PET62WW (1.30 ) || 09/29/2005
||
||
|-
| {{R40}} 2897-B4U
|| IBM || 2897B4U || Not Available || IBM || 2897B4U || Not Available || IBM || Not Available || IBM || 1PET52WW (1.20 ) || 03/03/2004
||
||
|-
| {{R40e}} 2684-L8G
|| IBM || 2897B4U || Not Available || IBM || 2897B4U || Not Available || IBM || Not Available || IBM || 1SET62WW (1.30 ) || 07/09/2004
||
|| {{WARN|Outdated BIOS}}
|-
| {{R50}} 1829-7QG
|| IBM || 0123456 || ThinkPad R50 || IBM || 0123456 || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
||
|-
|{{R50e}} 1834-JAG
|| IBM || 1834JAG || ThinkPad R50e || IBM || 1834JAG || Not Available || IBM || Not Available || IBM || 1WET82WW (2.02 ) || 02/21/2005
|| <nowiki>Handle 0x0022, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1VHT28WW-1.04 ]-</nowiki>
||
|-
|{{R50p}} 1832-2AG
|| IBM || 18322AG || ThinkPad R50p || IBM || 18322AG || Not Available || IBM || Not Available || IBM || 1RETC2WW (3.03 ) || 04/07/2004
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1RHT66WW-3.00a ]-</nowiki>
||
|-
| {{R51}} 1829-DRG
|| IBM || 1829DRG || ThinkPad R51 || IBM || 1829DRG || Not Available || IBM || Not Available || IBM || 1RETC2WW (3.03 ) || 04/07/2004
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT66WW-3.00a ]-</nowiki>
||
|-
| {{R51}} 1829-9MG
|| IBM || 18299MG || ThinkPad R51 || IBM || 18299MG || Not Available || IBM || Not Available || IBM || 1RETDOWW (3.20 ) || 02/27/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{R51}} 1829-L7G
|| IBM || 1829L7G || ThinkPad R51 || IBM || 1829L7G || Not Available || IBM || Not Available || IBM || 1RETDNWW (3.19 ) || 10/13/2005
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT70WW-3.03 ]-</nowiki>
||
|-
| {{R51}} [[1830-DG4]]
|| IBM || 1830DG4 || ThinkPad R51 || IBM || 1830DG4 || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki> ||
|-
| {{R51}} 1836-GEU
|| IBM || 1836GEU || ThinkPad R51 || IBM || 1836GEU || Not Available || IBM || Not Available || IBM || 1RETDLWW (3.17 ) || 07/27/2005 || <nowiki>Handle 0x0029, DMI type 11, 5 bytes. String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{R51}} 2883-ELU
|| IBM || 2883ELU || ThinkPad R51 || IBM || 2883ELU || Not Available || IBM || Not Available || IBM || 1VET69WW (1.27 ) || 03/03/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1VHT28WW-1.04 ]-</nowiki>
||
|-
| {{R52}} 1846-AQG
|| IBM || 1846AQG || ThinkPad H || IBM || 1846AQG || Not Available || IBM || Not Available || IBM || 76ET58WW (1.18 ) || 07/19/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[76HT14WW-1.04 ]-</nowiki>
|| {{NOTE|Weird system version, this bug is known fixed in latest BIOS}}
|-
| {{R52}} 1846-AQG
|| IBM || 1846AQG || ThinkPad R52p || IBM || 1846AQG || Not Available || IBM || Not Available || IBM || 76ET68WW (1.28 ) || 11/15/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[76HT16WW-1.06 ]-</nowiki>
||
|-
| {{R52}} 1846-AQG
|| IBM || 1846AQG || ThinkPad R52p || IBM || 1846AQG || Not Available || IBM || Not Available || IBM || 76ET69WW (1.29 ) || 12/06/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[76HT16WW-1.06 ]-</nowiki>
||
|-
| {{R52}} 1847-W62
|| IBM || 1847W62 || ThinkPad . || IBM || 1847W62 || Not Available || IBM || Not Available || IBM || 76ET58WW (1.18 ) || 07/19/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[76HT14WW-1.04 ]-</nowiki>
|| {{NOTE|Weird system version, this bug is known fixed in latest BIOS}}
|-
| {{R52}} 1847-W62
|| IBM || 1847W62 || ThinkPad R52 || IBM || 1847W62 || Not Available || IBM || Not Available || IBM || 76ET65WW (1.25 ) || 05/18/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[76HT16WW-1.06 ]-</nowiki>
||
|-
| {{R52}} 1858-6MM
|| IBM || 18586MM || ThinkPad R52 || IBM || 18586MM || Not Available || IBM || Not Available || IBM || 70ET40WW (1.04 ) || 06/02/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[70HT26WW-1.03 ]-</nowiki>
||
|-
| {{R52}} 1858-6SM
|| IBM || 18586SM || ThinkPad R52 || IBM || 18586SM || Not Available || IBM || Not Available || IBM || 70ET57WW (1.17 ) || 07/15/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[70HT26WW-1.03 ]-</nowiki> ||
|-
| {{R52}} 1846-4CG
|| IBM || 18464CG || ThinkPad R52 || IBM || 18464CG || Not Available || IBM || Not Available || IBM || 76ET65WW (1.25 ) || 05/18/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[76HT15WW-1.05 ]-</nowiki>
||
|-
| {{R52}} 1846-4CG
|| IBM || 18464CG || ThinkPad R52 || IBM || 18464CG || Not Available || IBM || Not Available || IBM || 76ET58WW (1.18 ) || 07/19/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[76HT16WW-1.06 ]-</nowiki> ||
||
|-
| {{R52}} 1846-B5G
|| IBM || 1846B5G || ThinkPad H || IBM || 1846B5G || Not Available || IBM || Not Available || IBM || 76ET58WW (1.18 ) || 07/19/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[76HT14WW-1.04 ]-</nowiki>
||
|-
| {{R60e}} 0657-4TG
|| LENOVO || 06574TG || ThinkPad R60e || LENOVO || 06574TG || Not Available || LENOVO || Not Available || LENOVO || 7EET18WW (1.04 ) || 07/28/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[7EHT13WW-1.05 ]-</nowiki>
||
|-
| {{R60}} 9456-6FG
|| LENOVO || 94566FG || ThinkPad R60 || LENOVO || 94566FG || Not Available || LENOVO || Not Available || LENOVO || 7CET50WW (1.05 ) || 07/28/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7CHT19WW-1.07 ]-</nowiki>
||
|-
| {{R60}} 9456-6FG
|| LENOVO || 94566FG || ThinkPad R60 || LENOVO || 94566FG || Not Available || LENOVO || Not Available || LENOVO || 7CETB7WW (2.07 ) || 11/13/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7CHT21WW-1.09 ]-</nowiki>
||
|-
| {{R60}} 9461-54G
|| LENOVO || 946154G || ThinkPad R60 || LENOVO || 946154G || Not Available || LENOVO || Not Available || LENOVO || 7CET50WW (1.05 ) || 07/28/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7CHT19WW-1.07 ]-</nowiki>
||
|-
| {{R60}} 9461-54G
|| LENOVO || 946154G || ThinkPad R60 || LENOVO || 946154G || Not Available || LENOVO || Not Available || LENOVO || 7CETC1WW (2.11 ) || 01/09/2007
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7CHT21WW-1.09 ]-</nowiki>
|| {{NOTE|With this bios version the brightness control buttons don't work for kernel < 2.6.20}}
|-
| {{R60}} 9461-DXG
|| LENOVO || 9461DXG || ThinkPad R60 || LENOVO || 9461DXG || Not Available || LENOVO || Not Available || LENOVO || 7CETB6WW (2.06 ) || 10/16/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7CHT21WW-1.09 ]-</nowiki>
|-
| {{R60}} 9462-GAG
|| LENOVO || 9462GAG || ThinkPad R60 || LENOVO || 9462GAG || Not Available || LENOVO || Not Available || LENOVO || 7CETB5WW (2.05 ) || 10/13/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7CHT21WW-1.09 ]-</nowiki> ||
|-
! colspan=14 style="text-align:center;background:#efefef;" |

====S series====
|-
| {{s30}} 2639-4WJ
|| IBM || 26394WJ || Not Available || IBM || 2609BS1 || Not Available || IBM || Not Available || IBM || 18ET45WW (1.45) || 07/10/2001
|| <nowiki></nowiki>
||
|-
! colspan=14 style="text-align:center;background:#efefef;" |

====T series====
|-
| {{T20}} 2647-UC2
|| IBM || 2647UC2 || Not Available || IBM || 2647UC2 || Not Available || IBM || Not Available || IBM || IYET45WW (1.08a) || 12/21/1999
||
|| {{WARN|Very outdated BIOS}}
|-
| {{T21}} 2647-8AU
|| IBM || 26478AU || Not Available || IBM || 26478AU || Not Available || IBM || Not Available || IBM || KZET34WW (1.16 ) || 04/28/2004
||
||
|-
| {{T22}} 2647-4EG
|| IBM || 26474EG || Not Available || IBM || 26474EG || Not Available || IBM || Not Available || IBM || 16ET31WW (1.11 ) || 03/20/2003
||
||
|-
| {{T22}} 2647-8EU
|| IBM || 26478EU || Not Available || IBM || 26478EU || Not Available || IBM || Not Available || IBM || 16ET32WW (1.12 ) || 04/27/2004
||
||
|-
| {{T23}} 2647-4NU
|| IBM || 26474NU || Not Available || IBM || 26474NU || Not Available || IBM || Not Available || IBM || 1AET62WW (1.18 ) || 07/06/2004
|| <nowiki>Handle 0x0024, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1AHT23WW-1.06a ]-</nowiki>
||
|-
| {{T23}} 2647-8MG
|| IBM || 26478MG || Not Available || IBM || 26478MG || Not Available || IBM || Not Available || IBM || 1AET56WW (1.13 ) || 07/02/2002
||
|| {{NOTE|Missing EC string, this bug is known to be fixed in latest BIOS}}
|-
| {{T23}} 2647-8MG
|| IBM || 26478MG || Not Available || IBM || 26478MG || Not Available || IBM || Not Available || IBM || 1AET62WW (1.18 ) || 07/06/2004
|| <nowiki>Handle 0x0024, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1AHT23WW-1.06a]-</nowiki>
||
|-
| {{T30}} 2366-85G
|| IBM || 236685G || Not Available || IBM || 236685G || Not Available || IBM || Not Available || IBM || 1IET69WW (2.08 ) || 06/11/2004
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1IHT18WW-1.05 ]-</nowiki>
||
|-
| {{T30}} 2366-GU1
|| IBM || 2366GU1 || Not Available || IBM || 2366GU1 || Not Available || IBM || Not Available || IBM || 1IET69WW (2.08 ) || 06/11/2004
|| <nowiki>Handle 0x0024, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1IHT19WW-1.06 ]-</nowiki>
||
|-
| {{T30}} 2366-JBU
|| IBM || 2366JBU || Not Available || IBM || 2366JBU || Not Available || IBM || Not Available || IBM || 1IET71WW (2.10 ) || 06/16/2006
|| <nowiki>Handle 0x0024, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1IHT20WW-1.07 ]-</nowiki>
||
|-
| {{T40}} 2378-D2U
|| IBM || 2378D2U || ThinkPad T40 || IBM || 2378D2U || Not Available || IBM || Not Available || IBM || 1RETC2WW (3.03 ) || 04/07/2004
||
|| {{NOTE|Missing EC string, this bug is known to be fixed in latest BIOS}}
|-
| {{T40p}} 2373-G1G
|| IBM || 2373G1G || ThinkPad T40p || IBM || 2373G1G || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T41}} 2373-W63
|| IBM || 2373W63 || ThinkPad T41 || IBM || 2373W63 || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T41}} 2373-XNX
|| IBM || 2373XNX || ThinkPad T41 || IBM || 2373XNX || Not Available || IBM || Not Available || IBM || 1RETDOWW (3.20 ) || 02/27/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T41}} 2373-2FG
|| IBM || 23732FG || ThinkPad T41 || IBM || 23732FG || Not Available || IBM || Not Available || IBM || 1RET84WW (2.11 ) || 10/30/2003
||
|| {{NOTE|Missing EC string, this bug is known to be fixed in latest BIOS}}
|-
| {{T41}} 2379-DJU
|| IBM || 2379DJU || ThinkPad T41 || IBM || 2379DJU || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki> ||
|-
| {{T41p}} 2373-GHG
|| IBM || 2373GHG || ThinkPad T41p || IBM || 2373GHG || Not Available || IBM || Not Available || IBM || 1RETDIWW (3.14 ) || 01/20/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T41p}} 2373-GEG
|| IBM || 2373GEG || ThinkPad T41p || IBM || 2373GEG || Not Available || IBM || Not Available || IBM || 1RETDNWW (3.19 ) || 10/13/2005
|| <nowiki> Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T41p}} 2373-GJJ
|| IBM || 2373GJJ || ThinkPad T41p || IBM || 2373GJJ || Not Available || IBM || Not Available || IBM || 1RETDOWW (3.20 ) || 02/27/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42}} 2373-FWG
|| IBM || 2373FWG || ThinkPad T42 || IBM || 2373FWG || Not Available || IBM || Not Available || IBM || 1RETDHWW (3.13 ) || 10/29/2004
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42}} 2373-M1G
|| IBM || 2373M1G || ThinkPad T42 || IBM || 2373M1G || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42}} 2374-WEH
|| IBM || 2374WEH || ThinkPad T42 || IBM || 2374WEH || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42}} 2378-FVU
|| IBM || 2378FVU || ThinkPad T42 || IBM || 2378FVU || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42p}} 2373-KXU
|| IBM || 2373KXU || ThinkPad T42p || IBM || 2373KXU || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42p}} 2373-KUU
|| IBM || 2373KUU || ThinkPad T42p || IBM || 2373KUU || Not Available || IBM || Not Available || IBM || 1RETDMWW (3.18 ) || 09/15/2005
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42p}} 2373-GYG
|| IBM || 2373GYG || ThinkPad T42p || IBM || 2373GYG || Not Available || IBM || Not Available || IBM || 1RETDOWW (3.20 ) || 02/27/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42p}} 2374-CP5
|| IBM || 2374CP5 || ThinkPad T42p || IBM || 2374CP5 || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42p}} 2379-DYU
|| IBM || 2379DYU || ThinkPad T42p || IBM || 2379DYU || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T42p}} 2372-Q2G
|| IBM || 2373Q2G || ThinkPad T42p || IBM || 2373Q2G || Not Available || IBM || Not Available || IBM || 1RETDPWW (3.21 ) || 06/02/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1RHT71WW-3.04 ]-</nowiki>
||
|-
| {{T43}} 1871-4AG
|| IBM || 18714AG || ThinkPad T43 || IBM || 18714AG || Not Available || IBM || Not Available || IBM || 70ET64WW (1.24 ) || 02/13/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[70HT27WW-1.04 ]-</nowiki> ||
||
|-
| {{T43}} 1871-F1G
|| IBM || 1871F1G || ThinkPad T43 || IBM || 1871F1G || Not Available || IBM || Not Available || IBM || 70ET61WW (1.21 ) || 11/01/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[70HT26WW-1.03 ]-</nowiki>
||
|-
| {{T43}} 2686-DGU
|| IBM || 2686DGU || ThinkPad T43 || IBM || 2686DGU || Not Available || IBM || Not Available || IBM || 1YET62WW (1.27 ) || 05/18/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1YHT29WW-1.06 ]-</nowiki>
||
|-
| {{T43}} 2669-WE5
|| IBM || 2669WE5 || ThinkPad T43 || IBM || 2669WE5 || Not Available || IBM || Not Available || IBM || 1YET56WW (1.21 ) || 07/06/2005
|| <nowiki>String 1: IBM ThinkPad Embedded Controller -[1YHT26WW-1.03 ]-</nowiki>
|| {{NOTE|User reports this is really a 2669-CEU with 1GB RAM + BlueTooth, and not a 2669-WE5 (unverified if this makes sense)}}
|-
| {{T43p}} 2668-G2G
|| IBM || 2668G2G || ThinkPad T43p || IBM || 2668G2G || Not Available || IBM || Not Available || IBM || 1YET47WW (1.08 ) || 06/09/2005
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[1YHT26WW-1.03 ]-</nowiki>
||
|-
| {{T43p}} 2687-D5U
|| IBM || 2687D5U || ThinkPad T43p || IBM || 2687D5U || Not Available || IBM || Not Available || IBM || 1YET59WW (1.24 ) || 11/07/2005
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1YHT26WW-1.03 ]-</nowiki>
||
|-
| {{T60}} 1952-W5R
|| LENOVO || 1952W5R || ThinkPad T60 || LENOVO || 1952W5R || Not Available || LENOVO || Not Available || LENOVO || 79ET61WW (1.06 ) || 05/24/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT45WW-1.04 ]-</nowiki>
||
|-
| {{T60}} 1952-W5R
|| LENOVO || 1952W5R || ThinkPad T60 || LENOVO || 1952W5R || Not Available || LENOVO || Not Available || LENOVO || 79ETD2WW (2.12 ) || 04/12/2007
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT50WW-1.07 ]-</nowiki> ||
||
|-
| {{T60}} 2007-49G
|| LENOVO || 200749G || ThinkPad T60 || LENOVO || 200749G || Not Available || LENOVO || Not Available || LENOVO || 79ET62WW (1.07 ) || 06/12/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[79HT45WW-1.04 ]-</nowiki>
||
|-
| {{T60}} 2007-77G
|| LENOVO || 200777G || ThinkPad T60 || LENOVO || 200777G || Not Available || LENOVO || Not Available || LENOVO || 79ETD1WW (2.11 ) || 03/15/2007
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT50WW-1.07 ]-</nowiki>
||
|-
| {{T60p}} 2007-83U
|| LENOVO || 200783U || ThinkPad T60p || LENOVO || 200783U || Not Available || LENOVO || Not Available || LENOVO || 79ET60WW (1.05a) || 04/18/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[79HT43WW-1.02 ]-</nowiki>
||
|-
| {{T60p}} 2007-93G
|| LENOVO || 200793G || ThinkPad T60p || LENOVO || 200793G || Not Available || LENOVO || Not Available || LENOVO || 79ET62WW (1.07 ) || 06/12/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[79HT45WW-1.04 ]-</nowiki>
||
|-
| {{T60p}} 2007-93U
|| LENOVO || 200793U || ThinkPad T60p || LENOVO || 200793U || Not Available || LENOVO || Not Available || LENOVO || 79ET66WW (1.10 ) || 08/02/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT48WW-1.05b ]-</nowiki>
||
|-
| {{T60p}} 2007-93U
|| LENOVO || 200793U || ThinkPad T60p || LENOVO || 200793U || Not Available || LENOVO || Not Available || LENOVO || 79ET67WW (1.11 ) || 08/29/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT48WW-1.05b ]-</nowiki>
||
|-
| {{T60p}} 2007-93U
|| LENOVO || 200793U || ThinkPad T60p || LENOVO || 200793U || Not Available || LENOVO || Not Available || LENOVO || 79ETC3WW (2.03 ) || 11/10/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT50WW-1.07 ]-</nowiki>
||
|-
| {{T60p}} 2007-ZK4
|| LENOVO || 2007ZK4 || ThinkPad T60p || LENOVO || 2007ZK4 || Not Available || LENOVO || Not Available || LENOVO || 79ETD3WW (2.13 ) || 04/30/2007
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT50WW-1.07 ]-</nowiki> ||
||
|-
| {{T60p}} 2613-ESU
|| LENOVO || 2613ESU || ThinkPad T60p || LENOVO || 2613ESU || Not Available || LENOVO || Not Available || LENOVO || 79ET67WW (1.11 ) || 08/29/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT48WW-1.05b ]-</nowiki>
||
|-
| {{T60p}} 2623-DDU
|| LENOVO || 2623DDU || ThinkPad T60p || LENOVO || 2623DDU || Not Available || LENOVO || Not Available || LENOVO || 79ETC3WW (2.03 ) || 11/10/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[79HT50WW-1.07 ]-</nowiki>
||
|-
| {{T61}} 7662-XDU
|| LENOVO || 7662XDU || ThinkPad T61 || LENOVO || 7662XDU || 7662XDU|| LENOVO || Not Available || LENOVO || 7LET37WW (1.07 ) || 04/17/2007
|| <nowiki>Handle 0x0028, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[7KHT19WW-1.03 ]-</nowiki>
|| {{WARN|BIOS and EC firmware have different IDs}}
|-
| {{T61}} 7661-A56
|| LENOVO || 7661A56 || ThinkPad T61 || LENOVO || 7661A56 || Not Available || LENOVO || Not Available || LENOVO || 7LET39WW (1.09 ) || 05/14/2007
|| <nowiki>Handle 0x0028, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7KHT21WW-1.05 ]-</nowiki>
||
|-
| {{T61}} 8897-CTO
|| LENOVO || 8897CTO || ThinkPad T61 || LENOVO || 8897CTO || Not Available || LENOVO || Not Available || LENOVO || 7LET52WW (1.22 ) || 08/27/2007
|| <nowiki>Handle 0x0028, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7KHT22WW-1.06 ]-</nowiki>
||
|-
! colspan=14 style="text-align:center;background:#efefef;" |

====X series====
|-
| {{X20}} 266231G
|| IBM || 266231G || Not Available || IBM || 266231G || Not Available || IBM || Not Available || IBM || IZET9DWW (2.25 ) || 04/17/2003
||
|-
|| 266232G || IBM || 266232G || Not Available || IBM || 266232G || Not Available || IBM || Not Available || IBM || IZET9AWW (2.22 ) || 09/11/2002
|| <nowiki></nowiki> ||
||
|-
| {{X23}} 2662EBG
|| IBM || 2662EBG || Not Available || IBM || 2662EBG || Not Available || IBM || Not Available || IBM || 1DET70WW (1.32 ) || 06/10/2003
|| <nowiki></nowiki> ||
|-
| {{X24}} 2662-MPU
|| IBM || 62MPUFX || Not Available || IBM || 62MPUFX || Not Available || IBM || Not Available || IBM || 1DET67WW (1.29 ) || 12/18/2002
||
||
|-
| {{X30}} 2672-4HU
|| IBM || 26724HU || Not Available || IBM || 26724HU || Not Available || IBM || Not Available || IBM || 1KET48WW (1.09 ) || 06/16/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1KHT18WW-1.06 ]-</nowiki> ||
|-
| {{X30}} 2672-PG3
|| IBM || 2672PG3 || Not Available || IBM || 2672PG3 || Not Available || IBM || Not Available || IBM || 1KET48WW (1.09 ) || 06/16/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1KHT18WW-1.06 ]-</nowiki>
||
|-
| {{X31}} 2672-JXU
|| IBM || 2672JXU || ThinkPad X31 || IBM || 2672JXU || Not Available || IBM || Not Available || IBM || 1QET97WW (3.02 ) || 09/22/2005
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1QHT23WW-1.08 ]-</nowiki> ||
|-
| {{X32}} 2884-A3U
|| IBM || 2884A3U || ThinkPad X32 || IBM || 2884A3U || Not Available || IBM || Not Available || IBM || 1QET94WW (3.00d) || 01/23/2005
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1QHT22WW-1.07b ]-</nowiki>
||
|-
| {{X32}} 2673-M4U
|| IBM || 2673M4U || ThinkPad X32 || IBM || 2673M4U || Not Available || IBM || Not Available || IBM || 1QET97WW (3.02 ) || 09/22/2005
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1QHT23WW-1.08 ]-</nowiki>
||
|-
| {{X40}} 2386-H4G
|| IBM || 2386H4G || ThinkPad X40 || IBM || 2386H4G || Not Available || IBM || Not Available || IBM || 1UET92WW (1.42 ) || 09/16/2004
|| <nowiki>Handle 0x0024, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[1UHT82WW-1.32 ]-</nowiki>
||
|-
| {{X40}} 2371-Y29
|| IBM || 2371Y29 || ThinkPad X40 || IBM || 2371Y29 || Not Available || IBM || Not Available || IBM || 1UETD3WW (2.08 ) || 12/21/2006
|| <nowiki>Handle 0x0024, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[1UHTA6WW-1.56 ]-</nowiki> ||
|-
| {{X41}} 2525-HU1
|| IBM || 2525HU1 || ThinkPad X41 || IBM || 2525HU1 || Not Available || IBM || Not Available || IBM || 74ET48WW (1.17a) || 06/07/2005
|| <nowiki>Handle 0x0025, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[74HT25WW-1.00 ]-</nowiki>
||
|-
| {{X60}} 1709-47U
|| LENOVO || 170947U || ThinkPad X60 || LENOVO || 170947U || Not Available || LENOVO || Not Available || LENOVO || 7BET44WW (1.04 ) || 03/13/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[7BHT29WW-1.02 ]-</nowiki>
||
|-
| {{X60}} 1709-GDJ
|| LENOVO || 1709GDJ || ThinkPad X60 || LENOVO || 1709GDJ || Not Available || LENOVO || Not Available || LENOVO || 7BETC2WW (2.03 ) || 10/16/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7BHT36WW-1.09 ]-</nowiki>
||
|-
| {{X60s}} 1702-55G
|| LENOVO || 170255G || ThinkPad X60s || LENOVO || 170255G || Not Available || LENOVO || Not Available || LENOVO || 7BET44WW (1.04 ) || 03/13/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[7BHT29WW-1.02 ]-</nowiki>
||
|-
| {{X60s}} 1702-5FG
|| LENOVO || 17025FG || ThinkPad X60s || LENOVO || 17025FG || Not Available || LENOVO || Not Available || LENOVO || 7BET49WW (1.09 ) || 07/27/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7BHT34WW-1.07 ]-</nowiki>
||
|-
| {{X60s}} 1704-56G
|| LENOVO || 170456G || ThinkPad X60s || LENOVO || 170456G || Not Available || LENOVO || Not Available || LENOVO || 7BET43WW (1.03 ) || 02/13/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[7BHT28WW-1.01 ]-</nowiki>
||
|-
! colspan=14 style="text-align:center;background:#efefef;" |

====Z series====
|-
| {{Z60t}} 2511-FEU
|| IBM || 2511FEU || ThinkPad Z60t || IBM || 2511FEU || Not Available || IBM || Not Available || IBM || 77ET42WW (1.05 ) || 11/19/2005
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[77HT28WW-1.02 ]-</nowiki>
||
|-
| {{Z60t}} 2511-FFG
|| IBM || 2511FFG || ThinkPad Z60t || IBM || 2511FFG || Not Available || IBM || Not Available || IBM || 77ET64WW (1.24 ) || 02/27/2007
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[77HT57WW-1.17 ]-</nowiki> ||
|-
| {{Z60m}} 2529-ETG
|| IBM || 2529ETG || ThinkPad Z60m || IBM || 2529ETG || Not Available || IBM || Not Available || IBM || 77ET59WW (1.19 ) || 04/24/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[77HT54WW-1.14 ]-</nowiki> ||
|-
| {{Z60m}} 2529-ETG
|| IBM || 2529ETG || ThinkPad Z60m || IBM || 2529ETG || Not Available || IBM || Not Available || IBM || 77ET64WW (1.24 ) || 02/27/2007
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[77HT58WW-1.18 ]-</nowiki> ||
|-
| {{Z60m}} 2529-FBG
|| IBM || 2529FBG || ThinkPad Z60m || IBM || 2529FBG || Not Available || IBM || Not Available || IBM || 77ET62WW (1.22 ) || 11/21/2006
|| <nowiki>Handle 0x0029, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[77HT58WW-1.18 ]-</nowiki> ||
|-
| {{Z60m}} 2529-FKG
|| IBM || 2529FKG || ThinkPad Z60m || IBM || 2529FKG || Not Available || IBM || Not Available || IBM || 77ET42WW (1.05 ) || 11/19/2005
|| String 1: IBM ThinkPad Embedded Controller -[77HT28WW-1.02 ]-
||
|-
| {{Z61m}} 9453-A11
|| LENOVO || 9453A11 || ThinkPad Z61m || LENOVO || 9453A11 || Not Available || LENOVO || Not Available || LENOVO || 7FET48WW (1.08 ) || 05/26/2006
|| <nowiki> String 1: IBM ThinkPad Embedded Controller -[7FHT21WW-1.03 ]-</nowiki>
||
|-
| {{Z61m}} 9543-A11
|| LENOVO || 9453A11 || ThinkPad Z61m || LENOVO || 9453A11 || Not Available || LENOVO || Not Available || LENOVO || 7FET53WW (1.13 ) || 07/27/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT23WW-1.05 ]-</nowiki> ||
|-
| {{Z61m}} 9543-A11
|| LENOVO || 9453A11 || ThinkPad Z61m || LENOVO || 9453A11 || Not Available || LENOVO || Not Available || LENOVO || 7FET93WW (2.11 ) || 11/10/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT26WW-1.08 ]-</nowiki> ||
|-
| {{Z61m}} 9453-A11
|| LENOVO || 9453A11 || ThinkPad Z61m || LENOVO || 9453A11 || Not Available || LENOVO || Not Available || LENOVO || 7FET53WW (1.13 ) || 07/27/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT23WW-1.05 ]-</nowiki> ||
|-
| {{Z61p}} 9453-A12
|| LENOVO || 9453A12 || ThinkPad Z61p || LENOVO || 9453A12 || Not Available || LENOVO || Not Available || LENOVO || 7FET45WW (1.05 ) || 04/20/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 bytes String 1: IBM ThinkPad Embedded Controller -[7FHT19WW-1.01 ]-</nowiki>
||
|-
| {{Z61p}} 9450-3AU
|| LENOVO || 94503AU || ThinkPad Z61p || LENOVO || 94503AU || Not Available || LENOVO || Not Available || LENOVO || 7FET53WW (1.13 ) || 07/27/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT23WW-1.05 ]-</nowiki> ||
|-
| {{Z61t}} 9440-2CU
|| LENOVO || 94402CU || ThinkPad Z61t || LENOVO || 94402CU || Not Available || LENOVO || Not Available || LENOVO || 7FET50WW (1.10 ) || 06/20/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT22WW-1.04 ]-</nowiki> ||
|-
| {{Z61t}} 9443-4GG
|| LENOVO || 94434GG || ThinkPad Z61t || LENOVO || 94434GG || Not Available || LENOVO || Not Available || LENOVO || 7FET96WW (2.14 ) || 12/25/2006
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT26WW-1.08 ]-</nowiki> ||
|-
| {{Z61t}} 9440-CTO
|| LENOVO || 9440CTO || ThinkPad Z61t || LENOVO || 9440CTO || Not Available || LENOVO || Not Available || LENOVO || 7FET99WW (2.17 ) || 04/17/2007
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT26WW-1.08 ]-</nowiki> ||
|-
| {{Z61t}} 9440-CTO
|| LENOVO || 9440CTO || ThinkPad Z61t || LENOVO || 9440CTO || Not Available || LENOVO || Not Available || LENOVO || 7FETA0WW (2.18 ) || 05/17/2007
|| <nowiki>Handle 0x0026, DMI type 11, 5 byte String 1: IBM ThinkPad Embedded Controller -[7FHT26WW-1.08 ]-</nowiki>
||
|}
</div>

==Adding entries==

Click the "Edit" link on the appropriate series above and add an entry of the following form:
:<tt>| </tt><i>description of your model</i>
:<i>data line 1</i>
:<i>data line 2</i>
:<tt>||</tt>
:<tt>|-</tt>

where the two data lines are generated by the following <tt>bash</tt> command:

<pre>
for X in system-{manufacturer,product-name,version} \
baseboard-{manufacturer,product-name,version} \
chassis-{manufacturer,version} bios-{vendor,version,release-date}; do \
echo -n "|| `sudo /usr/sbin/dmidecode -s $X` "; done; \
sudo /usr/sbin/dmidecode | perl -0777 -ne \
'm/\n(.*).\n.*\n(.*Embedded Cont.*)\n/i; print "\n|| <nowiki><</nowiki>nowiki>$1$2</nowiki>\n"'
</pre>

While at it, you may also want to test [[tp_smapi]] and update its [[tp_smapi#Model-specific_status|model-specific status table]].

==Software using ThinkPad DMI IDs==
* [[HDAPS]] driver whitelist
* [[tp_smapi]] driver whitelist
* [[ibm-acpi]]/thinkpad-acpi driver quirk list

Idle consumptions

2007-11-17T23:39:17Z

KotCzarny: stats for x32

This page reports the minimal consumptions of Thinkpads when idle. This means, in principle: minimum brightness, CPU and GPU at lowest speed, no wifi, hard drive spun down, no pcmcia cards inserted (see details of each entry).

This kind of information has several uses: comparing one's consumption with that of other people's setups, knowing which model to use as a gateway/file server, etc.

{| border="1" cellspacing="0" cellpadding="2"

! Model !! OS !! Remarks !! consumption
|----
|{{600E}} PII/366 || Debian Lenny/2.6.21 gnome || back light off, laptop-mode-tools enabled, fan on, idling, measured with powertop || 6W
|----
|{{600E}} PII/366 || Debian Lenny/2.6.21 gnome || Min brightness, laptop-mode-tools enabled, fan on, idling, measured with powertop || 7.5W
|----
|{{600E}} PII/366 || Debian Lenny/2.6.21 gnome || Max brightness, laptop-mode-tools enabled, fan on, idling, measured with powertop || 9.2W
|----
|{{600E}} PII/366 || Debian Lenny/2.6.21 gnome || Max brightness, laptop-mode-tools enabled, fan on, 100% cpu utilisation, measured with powertop || ~22W
|----
|{{600E}} PIII/450 || Archlinux 0.8/xfce || || 9W
|----
|{{R50e}}|| Gentoo (linux-2.6.22-rc4 force_HPET, fluxbox) ||With Networking, USB, firefox, thunderbird || 11.1W
|----
|{{R50e}}|| Gentoo (linux-2.6.22-rc4 force_HPET, fluxbox) ||Fluxbox + shell (+fan) || 10.5W
|----
|{{R50e}}|| Gentoo (linux-2.6.22-rc4 force_HPET, fluxbox) ||Blank Screen after 20min idle (+fan) || 7.1W
|----
|{{R52}}|| Gentoo (linux-2.6.22-rc6 + phc + hrt) ||Min brightness, tp-fancontrol, ipw2200 with power_save 5, undervolted, ondemand, laptop_mode, rovclock -c 100 -m 100<br />virtual console (idle kde desktop adds about 0.2W) || 12.1W
|----
|{{R61}}||Ubuntu 7.04||Wireless on||16.4W
|----
|{{T23}}||Ubuntu 7.04|| || 10.7W
|----
|{{T40}}||Gentoo (2.6.23-rc6-hrt2)|| [http://www.linuxpowertop.org/patches/kernel-2.6.22-rc1.patch Bg-timer patch], HPET-patches, radeon, <tt>rovclock -c 105 -m 122</tt>, no DRI, sound power_save = Y, min. brightness, no networking, with USB, Laptop-Mode, X & 1x URxvt || 7,4W
|----
|{{T41p}}||Ubuntu 7.10|| Undervolted, fglrx, no dri; fan->+0.5W, powerstate=2->+0.7W, HD->+1.5W, no usb || 7.7W
|----
|{{T42}} (2373)||Debian 4.0 Etch|| Kernel 2.6.21_rc5 + hrtimer, rovclock -c 100 -m 120 (Radeon M10), no DRI, min bright. (+3W max), no wifi (+1W if idle) || 9.4W
|----
|{{T43}} (1871)||Debian (Linux 2.6.21, fluxbox)|| DRI, alsa (power_save=1), with usb, no networking || 10.1W (12.0W with HD)
|----
|{{T43}} (2669)||Gentoo (2.6.20-gentoo-r5)|| Undervolted, fglrx (powerstate=1), DRI, no alsa, no usb modules, no networking || 12.7W
|----
|{{T43}} (2686)||Fedora Core 6 (2.6.19.x patched)|| Undervolted, radeon, <tt>rovclock -c 125 -m 130</tt>, no DRI, ALSA <tt>power_save=1</tt>, no usb modules, no networking, min brightness, HDD spun down || 15W
|----
|{{T60}} (2007)||Fedora Core 6|| Wireless kill switch on, 1400x1050 panel @ min brightness, fglrx (powerstate=1), HDD spun up (~1W saving without) || 16W
|----
|{{T60}} (2007)||KUbuntu 7.04|| Wireless on, 1680x1050 panel @ medium brightness, fglrx (powerstate=1) || 16W
|----
|{{T60}} (2623D6U)||Debian testing (linux-2.6.21-1-686)||1400x1050 14" min-bright, iwpriv wlan0 set_power 7, VESA driver|| 12,7W
|----
|{{X21}}||Kubuntu 7.04|| Minimal consumption with kde loaded.||5.5W
|----
|{{X31}}||Debian Etch||2.6.22rc6+hrt1 patch+radeon patch||~ 8 W
|----
|{{X31}} (2672-C2G)||Debian Etch||vanilla 2.6.23rc8 tickless kernel, wireless rf-kill on, min brightness, hdd idle but spinning||~ 9.6 W
|----
|{{X32}}||Slackware||2.6.23.1+hrt3 patch, tickless kernel, undervolted to 0.716, ati gfx @ 90mhz core 90mhz mem, hdd is CF, min brightness, wifi ON||~ 8.2 W
|----
|{{X32}}||Slackware||2.6.23.1+hrt3 patch, tickless kernel, undervolted to 0.716, ati gfx @ 90mhz core 90mhz mem, hdd is CF, max brightness, wifi ON||~ 11 W
|----
|{{X60}}||Ubuntu 7.04||Wireless kill switch on, min brightness||10.2W
|----
|{{X60s}}||Debian Etch||2.6.21 tickless kernel, processes tweaked with powertop, usb/fw unloaded, hd spun down, min brightness, ipw3945 set to powersave mode 7||8.3W
|----
|{{X60s}}||Debian Etch||2.6.21 tickless kernel, processes tweaked with powertop, usb/fw unloaded, hd spun down, min brightness,ipw3945 unloaded||9W
|----
|{{X60s}}||Debian Lenny(testing)|| 2.6.22 tickless kernel, hrt-patch, alpm-patches, almost everything unloaded (wifi,pcmcia,ethernet,usb,firewire,sd,snd) and stopped (no X11,only cron/syslog), no vesa-fb, min brightness, 5 min idle, measured with powertop 1.7 (ACPI)||7.7W
|----
|{{X60s}}||Debian Lenny(testing)|| 2.6.22 tickless kernel, hrt-patch, alpm-patches, almost everything unloaded (wifi,pcmcia,ethernet,usb,firewire,sd,snd), with X11 (latest intel-xorg-driver, DRI enabled) and one x-terminal running, min brightness, 5 min idle, measured with powertop 1.7 (ACPI)||8.3W
|----
|{{X61_Tablet}}||Ubuntu Gutsy(tribe6)|| 2.6.23-rc6-hrt1 x86_64, everything unloaded & stopped, lcd backlight off, hd powered down, powertop 1.8||8.5W
|----

Table of thinkpad-acpi LEDs

2007-11-17T23:05:33Z

KotCzarny: removed entries with all Cunk fields

This table contains informations about which LED number is used for which LED in the [[ibm-acpi]] driver.

To test please do the following and add the blinking LED to the table. The moon symbol is the standby led.

<pre>
echo "0 blink" > /proc/acpi/ibm/led
echo "1 blink" > /proc/acpi/ibm/led
echo "2 blink" > /proc/acpi/ibm/led
echo "3 blink" > /proc/acpi/ibm/led
echo "4 blink" > /proc/acpi/ibm/led
echo "5 blink" > /proc/acpi/ibm/led
echo "6 blink" > /proc/acpi/ibm/led
echo "7 blink" > /proc/acpi/ibm/led
echo "on" > /proc/acpi/ibm/light
</pre>

<div style="font-size: 92%">
{| {{prettytable}}
|-
! [[:Category:A Series|A Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{A31}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabay left || Ultrabay right || not found || Standby || {{Cunk}} || {{Cunk}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:G Series|G Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{G41}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:R Series|R Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{R40}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{R40e}}
| {{Cunk}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{R50p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R50e}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R51}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} || 2883-ELU, 1830-DG4
|-
! {{R52}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R60}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R61}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{R60e}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:T Series|T Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{T20}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T21}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || nothing || Ultrabay || nothing || nothing || Standby || {{ThinkLight(white)}} ||
|-
! {{T22}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || nothing || Ultrabay || nothing || nothing || Standby || {{ThinkLight(white)}} ||
|-
! {{T23}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2647-4MG
|-
! {{T30}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T40}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T40p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T41}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2373-2gg
|-
! {{T41p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2373-GHG
|-
! {{T42}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T42p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Stanby || {{ThinkLight(white)}} || 2373-C96
|-
! {{T43}}, {{T43p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T60}}, {{T61}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2007-49G, 6465-CTO
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:X Series|X Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{X20}}
| {{Cunk}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X21}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X23}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X30}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || Ultrabase Battery || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X31}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X32}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X40}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{X41}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{X60}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X61_Tablet}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:Z Series|Z Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{Z60t}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z60m}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z61m}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z61p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z61t}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay|| {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|}
</div>

Table of thinkpad-acpi LEDs

2007-11-17T22:59:08Z

KotCzarny: x32 has same lights as x31

This table contains informations about which LED number is used for which LED in the [[ibm-acpi]] driver.

To test please do the following and add the blinking LED to the table. The moon symbol is the standby led.

<pre>
echo "0 blink" > /proc/acpi/ibm/led
echo "1 blink" > /proc/acpi/ibm/led
echo "2 blink" > /proc/acpi/ibm/led
echo "3 blink" > /proc/acpi/ibm/led
echo "4 blink" > /proc/acpi/ibm/led
echo "5 blink" > /proc/acpi/ibm/led
echo "6 blink" > /proc/acpi/ibm/led
echo "7 blink" > /proc/acpi/ibm/led
echo "on" > /proc/acpi/ibm/light
</pre>

<div style="font-size: 92%">
{| {{prettytable}}
|-
! [[:Category:A Series|A Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{A22p}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! {{A30}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! {{A31}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabay left || Ultrabay right || not found || Standby || {{Cunk}} || {{Cunk}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:G Series|G Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{G41}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:R Series|R Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:R31|R31]]
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! {{R40}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{R40e}}
| {{Cunk}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{R50}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! {{R50p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R50e}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R51}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} || 2883-ELU, 1830-DG4
|-
! {{R52}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R60}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{R61}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{R60e}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:T Series|T Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{T20}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T21}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || nothing || Ultrabay || nothing || nothing || Standby || {{ThinkLight(white)}} ||
|-
! {{T22}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || nothing || Ultrabay || nothing || nothing || Standby || {{ThinkLight(white)}} ||
|-
! {{T23}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2647-4MG
|-
! {{T30}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T40}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T40p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T41}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2373-2gg
|-
! {{T41p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2373-GHG
|-
! {{T42}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T42p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Stanby || {{ThinkLight(white)}} || 2373-C96
|-
! {{T43}}, {{T43p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{T60}}, {{T61}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} || 2007-49G, 6465-CTO
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:X Series|X Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{X20}}
| {{Cunk}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X21}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X23}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X24}}
| {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} ||
|-
! {{X30}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || Ultrabase Battery || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X31}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X32}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X40}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{X41}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! {{X60}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || Ultrabase || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(white)}} ||
|-
! {{X61_Tablet}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{Cunk}} ||
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! [[:Category:Z Series|Z Series]]
! LED #0
! LED #1
! LED #2
! LED #3
! LED #4
! LED #5
! LED #6
! LED #7
! ThinkLight
! Notes
|-
! colspan=11 style="text-align:center;background:#efefef;" |
|-
! {{Z60t}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z60m}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z61m}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z61p}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay || {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|-
! {{Z61t}}
| {{PowerLED}} || {{Battery(amber)}} || {{Battery(green)}} || {{Cunk}} || Ultrabay|| {{Cunk}} || {{Cunk}} || Standby || {{ThinkLight(amber)}} ||
|}
</div>

User:KotCzarny

2007-11-17T04:55:17Z

KotCzarny:

*miau*

* My current thinkpads stable:
** x30, x32, x41-tablet, 760l, i1300, i1500

* Previously owned:
** 560e, 560x, 560z, 570, 770x, t20, x31

(i-series ones are not really a thinkpads but well..)

contact to me: tjosko _AT_ yahoo _DOT_ com

Problem with audio clipping

2007-11-17T04:53:10Z

KotCzarny: /* Model-specific observations */

One some models, certain audio mixer settings may result in very "harsh" and distorted sound both on the internal speakers and on headphones plug. This is especially evident when the played audio has high volume (i.e., full dynamic range).

This is caused by a hardware flaw: excessive internal amplification saturates the audio channels, resulting in [http://en.wikipedia.org/wiki/Clipping_(audio) clipping].

Solution: reduce the volume on the responsible mixer channel(s).
e.g. in the console ''alsamixer'' with control via arrows: up/down left/right.

===Model-specific observations===
(you can use alsamixer panel to find out if setting to 100% amplifies anything)

* {{T43}} ([[AD1981B]] audio controller): PCM channel volume higher than 70% may result in clipping, regardless of the Master channel.
* {{R40}} (Intel 82801DB/DBL/DBM audio controller (AC97)): PCM volume needs to be set under 80%, higher values cause clipping. Same with the Master channel as on T43.
* {{R51e}} ([[AD1981B]] audio controller): PCM channel volume higher than 84% may result in clipping, regardless of the Master channel.
* {{Z61e}} (Intel High Definition with AD1981): Just turn down the PCM channel volume to at least 77% and you should be happy (in some combination with external speakers, 65% was needed), the Master Channel can be kept at 100%. If that doesn't help, loading snd-hda-intel with model=thinkpad and position_fix=1 might also improve a bit.
* ([[AD1981A]]) {{X30}}, ([[AD1981B]]) {{X31}}, {{X32}}, {{X41_Tablet}}: volume gain from alsamixer (gain for Master Mono and Headphone is identical as Master, gain for Line, CD, Mic, Phone, and Aux is identical as PCM)
** Master 100% == 0dB
** PCM 74% == 0dB
** PCM 100% == +12dB
That is, anything higher than 0dB gain is amplification which can result in clipping.

AD1981B

2007-11-17T04:44:56Z

KotCzarny: /* Features */

__NOTOC__
{| width="100%"
|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;">
=== AD1981B ===
This is a Analog Devices AC'97 Audio controller

Note: The documentation of the R40 incorrectly(?) states it has a AD1891A

=== Features ===
* Chipset: AD1981B
* Interface: AC'97
* PCI-ID: 8086:24c5 (part of: [[Intel_82801DBM|Intel 82801DB-ICH4]])
* PCI-ID: 8086:266e (part of: [[Intel_82801FBM|Intel 82801FB-ICH6]])

</div>
|style="vertical-align:top" |
|}

=== Linux OSS driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.

=== Linux ALSA driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the snd-intel8x0 kernel module. This driver provides enhanced [[How to enable AC97 power saving|power saving]] capabilities.

On systems where lspci shows an ATI AC'97 Audio Controller (R40e and R51e), this chip is supported by the snd-atiixp kernel module.

==== Note ====
On some models ({{T40}}, {{T43p}}, ... {{R51e}} ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004]. Also, if Headphone Sense or Line Jack Sense are unmuted audio is dead ({{R52}}, {{X40}}). By default the Sense settings are not shown in GNOME.

==== Note ====
A bug was introduced in the 2.6.20 kernel (between the rc1 and rc2 releases) which causes the sound to stop working after hibernation. Rebooting does not seem to fix the problem. A quick work-around is to do a suspend-to-ram, and then wake the machine up. This issue is chronicled in this bug report on Launchpad.net:
The fix changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support worked very well. I don't know if it possibly could introduce other bugs or if it's a true fix.

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/80893

Changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support seems to be solving this issue for many users. Confirmed to work with: X31, T43p

=== FreeBSD OSS driver ===
snd_ich will work happily for this audio chip.

=== ThinkPads this chip may be found in ===
* {{G40}}
* {{R40}}, {{R40e}}
* {{R50}}, {{R50e}}, {{R50p}}, {{R51}}, {{R51e}}, {{R52}}
* {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
* {{X31}}, {{X32}}
* {{X40}}, {{X41}}, {{X41T}}

[[Category:Components]]

=== See also ===
* [[Problem with audio clipping]]

Talk:Pentium M undervolting and underclocking

2007-11-17T03:18:43Z

KotCzarny: fid:vid for a processor family is similiar

Hei Thinker,

according to my notion of the character of this page, i thought it should possibly be renamed to something like "How to lower voltage and clock speed on Pentium M processors" ("lower" might be replaced by "finetune" or "manually lower" or "tweak" or something else expressing more the expert audience of the article). This has the following advantages:
*complies with the naming scheme ;-)
*has words more likely to be found in google (voltage vs. undervolting; clock, speed vs. underclocking)
*Are undervolting/underclocking proper english words anyway?
*Follows a scheme of "from general to specific". The topic of the article is underclocking/undervolting. That it's for Pentium M processors is kind of secondary to that.

What do you think? I can do it if you agree.

[[User:Wyrfel|Wyrfel]] 00:21, 21 Oct 2005 (CEST)
----

Good points. Personally I'm fond of short technical titles, but I agree about accessibility and consistency with the rest of the site. I have a feeling (though no proof) that the under<i>clocking</i> doesn't really work (as I noted recently), so how about "Reducing voltage on the Pentium M processor" for now?

BTW, "underclocking" is pretty standard techie jargon (and a clear parallel of the well-known "overclocking"). "Undervolting" is somewhat less common, though I've seen it in use.

--[[User:Thinker|Thinker]] 00:55, 21 Oct 2005 (CEST)
----

== Which patch to use? ==

Since I might find the time to fiddle around with reducing the power consumption further, I wonder which of the 3 alternatives works best. Any recommendations?

--[[User:Spiney|spiney]] 11:05, 21 Dec 2005 (CET)
----

They all work... I think Alternative 2 is easiest to use.

--[[User:Thinker|Thinker]] 13:06, 21 Dec 2005 (CET)
----

== Init Script ==
Hi. I'm the author of the SysFS patch of "Alternative 2"

I have recently seen that someone has added your init script to my wiki page on gentoo-wiki. But unfortunatly this guy has removed all the exisiting content of the page at the same time. So a few hours later an admin of the site as reverted the page to its previous state.

Well that was just for the story of how I came to your wiki page. I just wanted to say That I have adedd again the init script to my page.
It's a nice thing. A lot more "gentoo spirit" that what I was using before (that is adding some code in /etc/conf.d/local.start)

I have made some modifications to the init script before adding it on my wiki page. So maybe you want to have a look at it.

Cheers!
--[[User:Bdz|Bdz]] 23:26, 10 Jan 2006 (CET)

----
== Trouble loading modules ==
If you receive the error after applying the bdz patch:

FATAL: Error inserting speedstep_centrino
(/lib/modules/2.6.15.4/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko): No such device

be sure you have included "ACPI tables" for decoding valid frequency - voltage pairs.

Also, note you may have to manually "modprobe" the speedstep-centrino during your boot sequence. For some reason it won't autodetect on my debian sid system.

Underclocking results in a *noticably* cooler processor, approximately 3-5 degrees, which is often enough to have the fan stop (now 43 deg basal temp on my lap.) The battery life boost is much more modest, I'm down to 17.5 W/h now with everything off.

--[[User:gsmenden|gsmenden]] 23:50, 12 Feb 2006 (EST)

== Undevolting a Core Duo ==
I have a Core Duo T2500, according to https://www.dedigentoo.org/trac/linux-phc/wiki/IntelCoreLimitationsOfLinuxPHC0_2_X, undevolting does not work really good, but the info is quite old too. So I want to ask if somebody is running an undervolted Core-CPU and has success with longer battery life and lower fan usage?

--[[User:Zhenech|Zhenech]] 14:45, 14 February 2007 (CET)

== VID-only tables are useless ==

Please don't publish only VID data. You also need to publish the FID, because not all BIOSes/OS combinations allow one to select every possible frequency step, and users will later need to find out which FID correspond to each VID...

--[[User:Hmh|hmh]] 20:30, 7 September 2007 (UTC)

Observation: fid:vid for a processor family is similiar
i have two machines with p-m dothan processor (x41t 1.5 ghz LV and x32 1.8ghz) and it seems that for any given frequency (FID), stable voltage (VID) is very similiar, if i get my hands on some banias based thinkpad, i will check if that theory extends there

--[[User:KotCzarny|KotCzarny]] 03:16, 17 November 2007 (UTC)

Pentium M undervolting and underclocking

2007-11-17T03:09:14Z

KotCzarny: added notes about methodology

== Background ==

Intel Pentium M processors from the [[Intel Pentium M (Dothan)|Dothan]] and [[Intel Pentium M (Banias)|Banias]] families can be instructed to operate at voltage and clock frequencies lower than the nominal ones recommended by Intel and used by ThinkPads by default. Experience shows that the processor may continue working correctly at lower-than-nominal voltages and frequencies, thereby reducing power consumption, heat and fan noise.

In the Pentium M, speed and voltage are controlled by software (through the MSR registers). It is up to the operating system to choose the right voltage for each frequency. Normally this is done according to tables published by Intel or according to ACPI tables. However, this can be overriden - in the case of Linux, by a kernel patch.

{{WARN|Following this instructions will operate your CPU under conditions it was not designed for. Even if your system seems stable, it may still suffer transient faults leading to arbitrary data corruption. In addition, errors in following these instructions (or changes between processor models) may operate the CPU ''above'' its nominal parameters, which, if taken too far, can cause kernel panics or even possibly hardware damage}}

For an example of what may be achieved, consider these examples: when voltages on one ThinkPad {{T43}} were reduced by 20-30%, stable CPU temperature dropped by 7-10deg under both idle and burn-in conditions. Combined with [[how to control fan speed|fan speed control]], this greatly reduced the [[Problem with fan noise|problem with fan noise]]. On one user's ThinkPad {{R51}}, an undervolt brought the full-load processor temperature down from 87 degrees to 63 degrees while maintaining full stability. The effect was, however, negligible at idle.

{{NOTE|While under''volting'' has a clear measurable effect, it's not clear if under''clocking'' really works. <tt>/proc/cpuinfo</tt> reflects the underclocked frequency, but enabling debug output on <tt>cpufreq</tt> causes it to say things like "<tt>CPU frequency out of sync: cpufreq and timing core thinks of 533000, is 800000 kHz.</tt>" where the former is the chosen underclocked frequency and the latter is the documented minimum frequency. This discrepancy also causes [[Software Suspend 2]] to oops during suspend.}}

There are several methods to control CPU voltage in Linux, and currently all of them require a patched kernel.

==Alternative 0: linux-phc==

Use the [[linux-phc]] kernel patch. '''This is the recommended method, as it is most generic and best supported.'''
* [https://www.dedigentoo.org/trac/linux-phc/ linux-phc home page]

The sysfs interface of linux-phc (version 0.3.0 or newer) requires you to specify VID (Voltage ID) numbers; see the documentation in the source package. For pre-Core Intel CPUs, VID is related to voltage (in mV) as follows: <tt>VID=(voltage-700)/16</tt>.

A typical configuration command would look something like this:

{{cmdroot|echo '27 22 16 10 3' > /sys/devices/system/cpu/cpu0/cpufreq/phc_vids}}

== Alternative 1: patch with hard-coded voltages ==
=== Instructions ===

# Determine the stable voltages for each frequency, using some overclocking/undervolting utility that has specific support for Pentium M ("Centrino") processors. It seems that no such utility exists for Linux. For windows, one good choice is [http://www.pbus-167.com/chc.htm Notebook Hardware Control (NHC)], which conveniently also includes a table of nominal frequencies and voltages (in its help file).<br> Ascertain that at the undervolted settings the CPU actually performs correct computation ([http://www.mersenne.org/freesoft.htm Prime95] in "Tortute Test" mode seems to be a good partial test emphasizing FPU and memory access).<br> Note that beside reducing voltages (undervolting), you can also try to add lower frequencies (underclocking). If you undervolt a particular frequency too much your machine is likely to crash, so try not to have any other programs open.
# Determine the model name string reported by the CPU, e.g., via the "<tt>Model name</tt>" line in {{path|/proc/cpuinfo}}, and likewise the <tt>cpu_family</tt>, <tt>model</tt> and <tt>stepping</tt>.
# Grab a copy of the example patch below and update it to reflect the parameters, frequencies and voltages you found.
# Apply the patch to your kernel (tested with 2.6.13.1 and 2.6.14-rc2).
# To prevent the ACPI table from overriding your table, disable the <tt>CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI</tt> kernel option.
# Compile and install the new kernel.

The changes should be active now. If you want to see debug information attesting to thus, do the following:

# Reboot in <tt>single</tt> mode.
# {{cmdroot|echo 2 > /sys/module/cpufreq/parameters/debug}}
# {{cmdroot|modprobe speedstep-centrino}}
# {{cmdroot|dmesg}} and check for the message "<tt>speedstep-centrino: found "Intel(R) Pentium(R) M processor </tt>..."

If you don't see that message, you got the <tt>cpu_id</tt> or <tt>model_name</tt> parmaeters wrong. If your system crashes, re-test the voltages and adjust accordingly.

Please report your results (including voltages)!

=== Linux kernel patch (example) ===

The following example shows how to undervolt a Pentium M 750 (1.86GHz) on a ThinkPad {{T43}}. As discussed above, the parameters are specific to this one CPU. You will need to experimentally find the correct settings for your own CPU and adjust the patch accordingly.

Note that the Pentium M 750 has a 533MHz FSB (quad-pumped 133MHz), hence the use of <tt>OP133</tt>. If you have a Pentium M with 400MHz FSB (i.e., quad-pumped 100MHz, found in [[Intel Pentium M (Banias)|Banias]] and older [[Intel Pentium M (Dothan)|Dothan]]) then in the voltage table change <tt>OP133</tt> to <tt>OP</tt>.

{{CodeRef|undervolt-pentium-m-2.6.13.1.patch}}

Don't forget to disable <tt>CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI</tt>.

==Alternative 2: patch with user-space control==

If you want to use the Ubuntu 2.6.15 Kernel, please have a look at this thread: http://ubuntuforums.org/showthread.php?t=146366

The [http://fabrice.bellamy.club.fr/bdz.undervolt.2005.10.22.a.patch bdz.undervolt.2005.10.22.a.patch] patch, written by Gentoo-Wiki user "Bdz", allows voltages to be changed without reboot.

It presents a userspace interface, as in the following example:
:{{cmdroot|cat /sys/devices/system/cpu/cpu0/cpufreq/voltage_table}}
:{{cmdresult|1356,1356,1356,1356,1356,1356,1356,1244,1116,988}}
:{{cmdroot|echo "1084,1084,1084,1084,1084,1084,1084,988,908,860" >/sys/devices/system/cpu/cpu0/cpufreq/voltage_table}}

The relevant [http://gentoo-wiki.com/HOWTO_Undervolt_a_Pentium_M_CPU page] on Gentoo-Wiki providues further information and some helpful hints and scripts for voltage adjustment.

When applying this patch be sure to keep the "ACPI tables for decoding frequency pairs" option -- this patch only allows adjustment of the voltages for the normal clock speeds as reported by the ACPI table in the BIOS. On some models (e.g., ThinkPad {{T43}}) this does not include all clock speeds supported by the processor.

=Initscript=
This is a Gentoo initscript for the patch from Gentoo-Wiki user "Bdz".

=== Configuration file ===
<bash>
# /etc/conf.d/undervoltage

# voltage table sysfs interface
VTABLE_SYSFS="/sys/devices/system/cpu/cpu0/cpufreq/voltage_table"

# switch back to DEFAULT_VTABLE if undervoltage is stopped? [yes/no]
SWITCH_BACK="no"

# pentium-m banias 1,7GHz default voltages
DEFAULT_VTABLE="1484,1308,1228,1116,1004,956"
# pentium-m banias 1,7GHz lowered voltages [ -208mV ]
MOD_VTABLE="1276,1100,1020,908,796,748"
</bash>

=== Initscript ===
<bash>
#!/sbin/runscript
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

sysfs_check() {

if ! [ -e ${VTABLE_SYSFS} ]; then
logger "No sysfs voltage_table present. Modifying vcore voltage failed."
eerror "It seems that the undervolting patch has not been applied to the kernel."
eerror "see http://gentoo-wiki.com/HOWTO_Undervolt_a_Pentium_M_CPU for further information"
return 1
fi
}

start() {
sysfs_check || return 1
ebegin "Switching to modified voltage table [${MOD_VTABLE}]"
echo ${MOD_VTABLE} > ${VTABLE_SYSFS}
eend $?
}

# I think it is not necessary to switch to the default voltage table on shutdown
stop() {
if [ $SWITCH_BACK = "yes" ]; then
ebegin "Switching back to default voltage table [${DEFAULT_VTABLE}]"
echo ${DEFAULT_VTABLE} > ${VTABLE_SYSFS}
eend $?
fi
}
</bash>

==Alternative 3: another patch with user-space control==

The [http://avkrok.net/nw8240/centrino-voltages.diff centrino-voltages.diff] patch, written by Rickard Holmberg, also provides user-space control. See [http://avkrok.net/nw8240/ here] and [http://mailman.linux-thinkpad.org/pipermail/linux-thinkpad/2005-December/030772.html here] for usage.

==Stress Testing==

This [[Undervolt Stress Testing Script|script]] illustrates a very conservative method to stress test your lowered voltage settings.

==Tested frequencies/voltages==

If you have done excessive testing with user defined frequencies (stable system for over a month).
and no lookups occur when computing primes with mprime http://mersenne.org/ (gentoo: 'emerge gimps')
you can post your frequencies here. But note that this is just a rough indication, since the stable values will differ between individual processors, even in the same model.

{| {{prettytable}}
! CPU Type !! GHz !! Frequency Steps
|-
| Pentium-M Banias || 1.6 || 1212,1084,956,860,796,748
|-
| Pentium-M Banias || 1.7 || 1276,1100,1020,908,796,748
|-
| Pentium-M Dothan || 1.4 || 924,892,860,828,796,764,732,700
|-
| Pentium-M Dothan || 1.86 || 1068,972,876,780,700
|-
| Pentium-M SL6F7 || 1.6 || 1196,1052,956,860,780,732
|-
| Pentium-M Dothan || 1.5 || 924,892,860,828,812,796,764,732,700
|-
| Pentium-M Dothan || 2.0 || 1084,940,844,764,748
|}

Following values were obtained with: (running at the same time)
<bash>
nice -n19 glxgears &
mplayer somedivx.avi &
cd /usr/src/linux && make -j2
</bash>
* note1: for pre-Core Intel CPUs, VID is related to voltage (in mV) as follows: VID=(voltage-700)/16 (or: voltage=(VID*16+700) mV)
* note2: when testing for stability you should pay attention to sound too, occasional distortions which disappear after bumping voltage a notch or two
* note3: if you use phc_vids for your script, then take only second number in each pair
{| {{prettytable}}
! Machine !! CPU Type !! GHz !! phc_controls (fid:vid)
|-
| {{X41T}} || Pentium-M Dothan LV (758) || 1.5 || 15:15 14:13 13:11 12:9 11:7 10:5 9:3 8:2 6:2
|-
| {{X32}} || Pentium-M Dothan (745) || 1.8 || 18:26 16:20 14:15 12:11 10:6 8:2 6:1
|}

[[Category:Patches]]

ThinkPad Dock

2007-11-16T22:15:20Z

KotCzarny: /* IBM part numbers */

{| cellspacing="0" cellpadding="2" border="0"
| style="vertical-align:top;" | __TOC__
[[Image:ThinkPadDock.jpg|ThinkPad Dock]]
| 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;">
== IBM ThinkPad Dock ==
The IBM ThinkPad Dock (Model 2631) transforms a regular Thinkpad into a full blown workstation with multiple monitors (PCI video card), higher fidelity audio (PC Card audio), and additional storage [[UltraBay|Ultrabay 2000]]. These expansion features are not supported by all Thinkpads, therefore the Dock does not support as many Thinkpads as the [[ThinkPad Port Replicator|Port Replicator]], [[ThinkPad Port Replicator II|Port Replicator II]] or [[ThinkPad Mini-Dock|Mini-Dock]].

=== Features ===
* everything the [[ThinkPad Port Replicator]] has
* 1 Full-size, half length PCI card slot
* 2 Type II (or 1 Type III) [[CardBus slot]]
* 1 [[UltraBay|Ultrabay 2000]] slot

===Pros & Cons===
* Positives: Expansion capability
* Negatives: internal fan is fairly large.
* DVI pass-through and ethernet (RJ45) on the Dock is only supported with select ThinkPads.
* Compatibility: X20/30, T20/30 and A20/30 Series notebooks (does not support the A21e/22e).
* Warranty: One Year
</div>
* [ftp://ftp.software.ibm.com/pc/pccbbs/mobiles_pdf/92p1836.pdf ThinkPad Docking Solutions HMM (February 2003)] (248,638 Bytes)
|}
{{gallery_start}}
{{thumb|t30_dock.jpg|T30 docked in a Dock}}
{{thumb|t30_dock-2.jpg|T30 docked in a Dock}}
{{gallery_end}}

Lenovo (IBM) link to the dock: http://www-307.ibm.com/pc/support/site.wss/MIGR-42164.html

==IBM part numbers==
* Order P/N: 02K8660
* FRU P/N: 02K8666
* FRU P/N: 08N1546
* Type: 2631

==PCI Slot==
Many use the PCI slot for peripherals like secondary video cards, TV tuners, audio cards, etc. This is considered by many to be the highlight of the Dock, and is a feature that few other docks have. The Dock does not support AGP or PCI Express. Potential owners of the Dock are often concerned about compatibility and recommendations of video cards. See the [[#Compatible Video Cards|compatible video cards]] list below for more information.
===Video Cards===
The PCI slot is most often used for installing video cards to allow for multiple monitors. This feature is especially useful for anyone that requires visualizing a large amount of information, including stock brokers, artists, etc. Due to the slow PCI bus, gaming is generally not improved much by external cards.
One of the chief concerns of low profile video cards is whether they support the monitor setup you desire. As more monitors these days are LCDs, quality DVI support is essential. Additional concerns include driver support, ability to hot-swap (add or remove the thinkpad without rebooting), and noise/heat.
====Quality DVI & Widescreen support====
One way to work around the [[Problem with DVI throughput|limitations]] of the docks DVI pass-through port is to use a PCI graphics card which features a PCI port. Note that while this probably will work, the performance of the PCI graphics accellerator will be poor because of the limitations of the interface.

Also the newest ATI video drivers for both Linux and Windows are known to not have limited resolution support on the external DVI port anymore.

====Compatible Video Cards====
This is a list of the most popular low-profile PCI video cards used with the IBM ThinkPad Dock.
{| cellpadding="5" border="1"
|- style="text-align:left;"
!Card !! Chipset !! RAM !! Ports !! Max DVI Res !! TDMS !! Cooling !! Compatibility
|-
|3DFuzion GeForce FX 6200
|NVidia GeForce FX 6200
|128 MB DDR
|1x DVI, 1x VGA, 1x TV-Out
|Unknown
|Unknown
|passive
|working
|-
|ATI Radeon 9200
|ATI Radeon 9200
|128 MB DDR
|1x DVI, 1x VGA, 1x TV-Out
|Unknown
|Unknown
|passive
|working
|-
|ATI Technologies Inc 3D Rage II+ 215GTB [Mach64 GTB] (rev 9a)
|
|
|1x VGA
|
|
|passive
|working
|-
|Gainward Pro 660 TV/DVI
|GeForce FX 5200
|128 MB DDR
|1x DVI, 1x VGA, 1x TV-Out
|Unknown
|Unknown
|passive
|working
|-
|GeForce 4 MX 440
|GeForce 4 MX 440
|64 MB
|1x VGA, 1x T-Out
|Unknown
|Unknown
|passive
|working
|}

====PCI USB 2.0 Cards====
PCI USB 2.0 card installed in the PCI slot will provide USB 2.0 support to the older systems.

====PCI FireWire 800 Cards====
PCI FireWire 800 card installed in the PCI slot will provide FireWire and FireWire 800 support to the older systems.

==Ultrabay 2000==
The ThinkPad Dock has a [[UltraBay|UltraBay 2000]] slot, which is '''not''' hotswap capable.

The docks IDE interface is a CMD 648, so you should enable the according kernel option (compile it into the kernel if loading as a module doesn't work), if you want to use anything else than a floppy in the docks UltraBay.
Note that the interface will most likely be ide2 and ide3 then, so the docks UltraBay drive will be hde.

Under MacOS X x86 10.4.5 having any drives in the [[UltraBay|UltraBay 2000]] slot will result in a kernel crash at boot. Without an [[UltraBay|UltraBay 2000]] device installed it boots correctly.

==PC Card Slots==
The PC Card slot has been verified to work with a USB 2.0 CardBus card under Fedora Core 5.
The card used to test it is seen as USB Controller: NEC Corporation USB 2.0 (rev 04).

==Noise & Heat==
[[Image:thinkpad_dock_fanconnector.png|left]]
Since the ThinkPad Dock is a bit noisy, some people have taken to unplugging the fan inside (or possibly replacing it). While this likely voids your warranty, it may be necessary if you really want it quiet. Adding a PCI card (especially a video card) increases the heat inside the dock, and it may have a fan on board as well, meaning it will increase the noise level. You should take into consideration the noise and heat it may add.

The connector for the fan is visible in the picture at left, and is accessible by removing the PCI bay cover.

==DVI pass-through==
LCD monitors are getting larger and higher-resolution. Currently, DVI based on 165MHz TDMS transmitters can only (officially) support 1600x1200x32 at 60Hz, which is the resolution of your average 20" non-widescreen LCD. IBM's driver support for this resolution through DVI ports on docks has been inconsistent. Also in Linux you might experience [[Problem with DVI throughput|problems]] even with this resolution and IBM officially states that the pass-through DVI port only supports resolutions up to 1280x1024. Read [[Problem with DVI throughput|our page]] of information on how to solve these troubles.

{{NOTE|DVI pass-through is only supported in combination with a ThinkPad {{A20p}}, {{A21p}}, {{A22p}} and {{A31p}}.}}

== Supported ThinkPads ==
* {{A20m}}, {{A20p}}, {{A21m}}, {{A21p}}, {{A22m}}, {{A22p}}
* {{A30}}, {{A30p}}, {{A31}}, {{A31p}}
* {{T20}}, {{T21}}, {{T22}}, {{T23}}
* {{T30}}
* {{X20}}, {{X21}}, {{X22}}, {{X23}}, {{X24}}
* {{X30}}, {{X31}}, {{X32}}

ThinkPad Port Replicator

2007-11-16T22:11:56Z

KotCzarny: /* IBM Partnumbers */

{| cellspacing="0" cellpadding="2" border="0"
| style="vertical-align:top;" | __TOC__
[[Image:dock_replicator.jpg|200px|Dock Replicator, show with a T30]]
| 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;">

== IBM ThinkPad Port Replicator ==
The Port Replicator contains basic pass-through connections for notebook ports, including power pass-through. It comes without integrated power supply but provides the same DC port as found in a ThinkPad, so you need to use either your Thinkpad AC adapter or another IBM AC adapter, or simply use your ThinkPad's battery power while docked. Besides all the pass-through ports the Port Replicator comes with an On/Off switch and a slot for a cable lock (only for the dock though).

===Features===
* Passthrough ports:
** Ethernet (RJ45)
** Modem (RJ11)
** USB (1-port)
** DVI (only works with select ThinkPads)
** [[VGA Port|VGA]]
** [[Serial Port|Serial (DB9-M)]]
** [[Parallel Port|Parallel (DB25-F)]]
** [[PS/2 Port|PS/2 Keyboard]]
** [[PS/2 Port|PS/2 Mouse]]
** [[Floppy Connector|External Diskette drive]]
** Audio line-in and line-out
** Firewire (IEEE1394) on selected models
* Kensington Lock connector
* Power button

===Pros & Cons===
* Positives: Inexpensive
* Negatives: Requires AC adapter, only one USB port, doesn't secure Thinkpad
* Compatibility: X20/30, T20/30, R30, and A20/30 series
* Warranty: One Year
</div>
* [ftp://ftp.software.ibm.com/pc/pccbbs/mobiles_pdf/92p1836.pdf ThinkPad Docking Solutions HMM (February 2003)] (248,638 Bytes)
|}

== IBM Partnumbers ==
* Order P/N: 02K8668
* FRU P/N: 08N1536
* FRU P/N: 02K8669 (with firewire passthrough)

==DVI pass-through==
LCD monitors are getting larger and higher-resolution. Currently, DVI based on 165MHz TDMS transmitters can only (officially) support 1600x1200x32 at 60Hz, which is the resolution of your average 20" non-widescreen LCD. IBM's driver support for this resolution through DVI ports on docks has been inconsistent. Also in Linux you might experience [[Problem with DVI throughput|problems]] even with this resolution and IBM officially states that the pass-through DVI port only supports resolutions up to 1280x1024. Read [[Problem with DVI throughput|our page]] of information on how to solve these troubles.

{{NOTE|DVI pass-through is only supported in combination with a ThinkPad T30, A20p, A21p and A22p and possibly the A31p (unconfirmed)}}

== Supported ThinkPads ==
* ThinkPad {{A20m}}, {{A20p}}, {{A21e}}, {{A21m}}, {{A21p}}, {{A22e}}, {{A22m}}, {{A22p}}
* ThinkPad {{A30}}, {{A30p}}, {{A31}}, {{A31p}}
* ThinkPad {{R30}}, {{R31}}, {{R32}}
* ThinkPad {{T20}}, {{T21}}, {{T22}}, {{T23}}
* ThinkPad {{T30}}
* ThinkPad {{X20}}, {{X21}}, {{X22}}, {{X23}}, {{X24}}
* ThinkPad {{X30}}, {{X31}}, {{X32}}

Problem with audio clipping

2007-11-16T03:22:57Z

KotCzarny: /* Model-specific observations */

One some models, certain audio mixer settings may result in very "harsh" and distorted sound both on the internal speakers and on headphones plug. This is especially evident when the played audio has high volume (i.e., full dynamic range).

This is caused by a hardware flaw: excessive internal amplification saturates the audio channels, resulting in [http://en.wikipedia.org/wiki/Clipping_(audio) clipping].

Solution: reduce the volume on the responsible mixer channel(s).
e.g. in the console ''alsamixer'' with control via arrows: up/down left/right.

===Model-specific observations===
(you can use alsamixer panel to find out if setting to 100% amplifies anything)

* {{T43}} ([[AD1981B]] audio controller): PCM channel volume higher than 70% may result in clipping, regardless of the Master channel.
* {{R40}} (Intel 82801DB/DBL/DBM audio controller (AC97)): PCM volume needs to be set under 80%, higher values cause clipping. Same with the Master channel as on T43.
* {{R51e}} ([[AD1981B]] audio controller): PCM channel volume higher than 84% may result in clipping, regardless of the Master channel.
* {{Z61e}} (Intel High Definition with AD1981): Just turn down the PCM channel volume to at least 77% and you should be happy (in some combination with external speakers, 65% was needed), the Master Channel can be kept at 100%. If that doesn't help, loading snd-hda-intel with model=thinkpad and position_fix=1 might also improve a bit.
* {{X30}} ([[AD1981A]]), {{X31}} ([[AD1981B]]), {{X32}} ([[AD1981B]]): volume gain from alsamixer (gain for Line, CD, Mic, Phone, and Aux is identical as PCM)
** Master 100% == 0dB
** PCM 74% == 0dB
** PCM 100% == +12dB

AD1981B

2007-11-16T03:18:41Z

KotCzarny: /* Features */

__NOTOC__
{| width="100%"
|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;">
=== AD1981B ===
This is a Analog Devices AC'97 Audio controller

Note: The documentation of the R40 incorrectly(?) states it has a AD1891A

=== Features ===
* Chipset: AD1981B
* Interface: AC'97
* PCI-ID: 8086:24c5
* Part of: [[Intel_82801DBM|Intel 82801DB-ICH4]]
</div>
|style="vertical-align:top" |
|}

=== Linux OSS driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.

=== Linux ALSA driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the snd-intel8x0 kernel module. This driver provides enhanced [[How to enable AC97 power saving|power saving]] capabilities.

On systems where lspci shows an ATI AC'97 Audio Controller (R40e and R51e), this chip is supported by the snd-atiixp kernel module.

==== Note ====
On some models ({{T40}}, {{T43p}}, ... {{R51e}} ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004]. Also, if Headphone Sense or Line Jack Sense are unmuted audio is dead ({{R52}}, {{X40}}). By default the Sense settings are not shown in GNOME.

==== Note ====
A bug was introduced in the 2.6.20 kernel (between the rc1 and rc2 releases) which causes the sound to stop working after hibernation. Rebooting does not seem to fix the problem. A quick work-around is to do a suspend-to-ram, and then wake the machine up. This issue is chronicled in this bug report on Launchpad.net:
The fix changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support worked very well. I don't know if it possibly could introduce other bugs or if it's a true fix.

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/80893

Changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support seems to be solving this issue for many users. Confirmed to work with: X31, T43p

=== FreeBSD OSS driver ===
snd_ich will work happily for this audio chip.

=== ThinkPads this chip may be found in ===
* {{G40}}
* {{R40}}, {{R40e}}
* {{R50}}, {{R50e}}, {{R50p}}, {{R51}}, {{R51e}}, {{R52}}
* {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
* {{X31}}, {{X32}}
* {{X40}}, {{X41}}, {{X41T}}

[[Category:Components]]

=== See also ===
* [[Problem with audio clipping]]

Intel 82801DBM

2007-11-16T03:17:25Z

KotCzarny: /* Features */

__NOTOC__
{| width="100%"
|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;">
=== Intel 82801DBM ===
This is a Intel ICH4-M I/O Controller Hub

=== Features ===
* ATA-100 IDE
* PCI bus 2.2 32-bit, 33MHz
* Ethernet MAC
* USB 2.0
* AC '97
</div>
|style="vertical-align:top" |
|}

=== Linux support ===
This chipset is supported by recent 2.4 and 2.6 kernels
=== Links ===
[http://www.intel.com/design/mobile/datashts/252337.htm Intel Documentation]

=== ThinkPads this chip may be found in ===
* {{G40}}, {{G41}}
* {{R40}}
* {{R50}}, {{R50e}}, {{R50p}}, {{R51}}
* {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}
* {{X31}}, {{X32}}
* {{X40}}

[[Category:Components]]

AD1981A

2007-11-16T03:09:52Z

KotCzarny: /* Features */

Recovering without Recovery CDs

2007-11-16T01:57:13Z

KotCzarny: /* Downloading Drivers */

Information about recovering the preloaded OS without any Recovery CD.

==Coverage of this approach==
You can't download preinstalled commercial applications from the IBM website (only updates are provided). Commercial software known to be preinstalled is CD/DVD burning and DVD playback software and Norton AntiVirus. On the other hand, this approach doesn't restore the original setup, but gives you a system with the lates drivers and tools from IBM, that might work even better than the originally installed one.

==preinstalled Windows versions and their keys==
===Windows 98===
{{Todo|Windows 98 specific stuff}}

===Windows ME===
{{Todo|Windows ME specific stuff}}

===Windows 2000===
{{Todo|Windows 2000 specific stuff}}

===Windows XP===
Preinstalled Windows XP versions usually have an OEM key that does not work with a boxed Windows XP. You will have to use the key that comes with the box instead.
Note: The Windows XP install-cd doesn't include drivers for the AHCI-mode of the S-ATA drive. Therefore, on the models using this by default, you should set the SATA Controller Mode Option (in the BIOS setup) to "Compatibility" before installing windows, OR before beginning the install, download the "Intel Matrix Storage Manager Driver" from Lenovo's support-site, copy these to a diskette to install by pressing F6 during the driver-loading of the windows install process (see the readme for more info).

==Downloading Drivers==
Get drivers by entering your model into the appropriate fields on IBMs [http://www.ibm.com/products/finder/us/en/finders?pg=ddfinder Downloads and drivers] page.
Another good place for drivers and software is: [http://www-307.ibm.com/pc/support/site.wss/TPAD-MATRIX.html thinkpad software matrix].

==Installing Drivers==
The easiest way to install drivers after the system installation is through the Software Installer. It is available from the Lenovo support pages. To use it, you will need to connect your freshly setup ThinkPad to the internet.

So you should care about having any means of a network driver at hand for the Windows system you are installing on the ThinkPad. So, connect a second machine to the net and download the Software Installer and a network driver for your particular network card. Network drivers are available from the Lenovo support pages as well.

Once you installed the Software Installer, run it and follow the process. It might happen that the Software Installer doesn't install all drivers available for your ThinkPad model. To make sure you have everything check IBMs [http://www.ibm.com/products/finder/us/en/finders?pg=ddfinder Downloads and drivers] page for your model.

==External Sources==
*[http://www.ibm.com/products/finder/us/en/finders?pg=ddfinder IBM Downloads and drivers]
*[http://www-307.ibm.com/pc/support/site.wss/DRVR-MATRIX.html IBM Windows Driver Matrix]

[[Category:Windows]]

AD1981A

2007-11-16T00:36:02Z

KotCzarny: /* AD1981A */

AD1981A

2007-11-16T00:35:05Z

KotCzarny: /* AD1981A */

AD1981B

2007-11-16T00:32:02Z

KotCzarny: /* ThinkPads this chip may be found in */

__NOTOC__
{| width="100%"
|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;">
=== AD1981B ===
This is a Analog Devices AC'97 Audio controller

Note: The documentation of the R40 incorrectly(?) states it has a AD1891A

=== Features ===
* Chipset: AD1981B
* Interface: AC'97
* PCI-ID: 8086:24c5
* Part of: Intel 82801DB-ICH4
</div>
|style="vertical-align:top" |
|}

=== Linux OSS driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.

=== Linux ALSA driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the snd-intel8x0 kernel module. This driver provides enhanced [[How to enable AC97 power saving|power saving]] capabilities.

On systems where lspci shows an ATI AC'97 Audio Controller (R40e and R51e), this chip is supported by the snd-atiixp kernel module.

==== Note ====
On some models ({{T40}}, {{T43p}}, ... {{R51e}} ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004]. Also, if Headphone Sense or Line Jack Sense are unmuted audio is dead ({{R52}}, {{X40}}). By default the Sense settings are not shown in GNOME.

==== Note ====
A bug was introduced in the 2.6.20 kernel (between the rc1 and rc2 releases) which causes the sound to stop working after hibernation. Rebooting does not seem to fix the problem. A quick work-around is to do a suspend-to-ram, and then wake the machine up. This issue is chronicled in this bug report on Launchpad.net:
The fix changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support worked very well. I don't know if it possibly could introduce other bugs or if it's a true fix.

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/80893

Changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support seems to be solving this issue for many users. Confirmed to work with: X31, T43p

=== FreeBSD OSS driver ===
snd_ich will work happily for this audio chip.

=== ThinkPads this chip may be found in ===
* {{G40}}
* {{R40}}, {{R40e}}
* {{R50}}, {{R50e}}, {{R50p}}, {{R51}}, {{R51e}}, {{R52}}
* {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
* {{X31}}, {{X32}}
* {{X40}}, {{X41}}, {{X41T}}

[[Category:Components]]

=== See also ===
* [[Problem with audio clipping]]

AD1981A

2007-11-16T00:31:01Z

KotCzarny: â†Created page with '__NOTOC__ {| width="100%" |style="vertical-align:top" | <div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8...'

Category:X30

2007-11-16T00:27:59Z

KotCzarny: /* Standard Features */

{| width="100%"
|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 X30 ===
This pages gives an overview of all ThinkPad X30 related topics.
==== Standard Features ====
* [[Intel Mobile Pentium III-M]] 1.06 or 1.2 GHz CPU
* [[Intel Graphics Technology]]
** 12.1" TFT display with 1024x768 resolution
* 128 or 256MB [[PC-133]] memory standard (1GB max)
* 20 or 40GB HDD
* [[AD1981A]] AC'97 Audio controller
* Integrated Intel 10/100 Ethernet controller
* [[CDC slot]] with one of the following:
** none (empty)
** [[Modem Daughter Card (MDC)]]
** [[Bluetooth Daughter Card (BDC)]]
* [[MiniPCI slot]] with one of the following:
** none (empty)
** [[Cisco Aironet Wireless 802.11b]]
** [[IBM High Rate Wireless LAN Mini-PCI Adapter with Modem II]]
* [[Embedded Security Subsystem|IBM Embedded Security Subsystem 2.0]] on select models
* [[CF Card slot]]
* [[CardBus slot]] (Type 2)
* Firewire (IEEE1394)
</div>
|style="vertical-align:top" |

[[image:ThinkPadX30_BIG.jpg||thumb|ThinkPad X30]]
|}
* [ftp://ftp.software.ibm.com/pc/pccbbs/mobiles_pdf/39t6189.pdf ThinkPad X30, X31, X32 - Hardware Maintenance Manual (July 2005)] (4,375,026 Bytes)

[[Category:X Series]]

AD1981B

2007-11-16T00:19:30Z

KotCzarny: /* Features */

__NOTOC__
{| width="100%"
|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;">
=== AD1981B ===
This is a Analog Devices AC'97 Audio controller

Note: The documentation of the R40 incorrectly(?) states it has a AD1891A

=== Features ===
* Chipset: AD1981B
* Interface: AC'97
* PCI-ID: 8086:24c5
* Part of: Intel 82801DB-ICH4
</div>
|style="vertical-align:top" |
|}

=== Linux OSS driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.

=== Linux ALSA driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the snd-intel8x0 kernel module. This driver provides enhanced [[How to enable AC97 power saving|power saving]] capabilities.

On systems where lspci shows an ATI AC'97 Audio Controller (R40e and R51e), this chip is supported by the snd-atiixp kernel module.

==== Note ====
On some models ({{T40}}, {{T43p}}, ... {{R51e}} ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004]. Also, if Headphone Sense or Line Jack Sense are unmuted audio is dead ({{R52}}, {{X40}}). By default the Sense settings are not shown in GNOME.

==== Note ====
A bug was introduced in the 2.6.20 kernel (between the rc1 and rc2 releases) which causes the sound to stop working after hibernation. Rebooting does not seem to fix the problem. A quick work-around is to do a suspend-to-ram, and then wake the machine up. This issue is chronicled in this bug report on Launchpad.net:
The fix changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support worked very well. I don't know if it possibly could introduce other bugs or if it's a true fix.

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/80893

Changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support seems to be solving this issue for many users. Confirmed to work with: X31, T43p

=== FreeBSD OSS driver ===
snd_ich will work happily for this audio chip.

=== ThinkPads this chip may be found in ===
* {{G40}}
* {{R40}}, {{R40e}}
* {{R50}}, {{R50e}}, {{R50p}}, {{R51}}, {{R51e}}, {{R52}}
* {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
* {{X30}}, {{X31}}, {{X32}}
* {{X40}}, {{X41}}, {{X41T}}

[[Category:Components]]

=== See also ===
* [[Problem with audio clipping]]

AD1981B

2007-11-16T00:16:57Z

KotCzarny: /* Features */

__NOTOC__
{| width="100%"
|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;">
=== AD1981B ===
This is a Analog Devices AC'97 Audio controller

Note: The documentation of the R40 incorrectly(?) states it has a AD1891A

=== Features ===
* Chipset: AD1981B
* Interface: AC'97
* PCI-ID: 8086:24c5
</div>
|style="vertical-align:top" |
|}

=== Linux OSS driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the i810_audio kernel module.

=== Linux ALSA driver ===
On systems where lspci shows an Intel AC'97 Audio Controller, this chip is supported by the snd-intel8x0 kernel module. This driver provides enhanced [[How to enable AC97 power saving|power saving]] capabilities.

On systems where lspci shows an ATI AC'97 Audio Controller (R40e and R51e), this chip is supported by the snd-atiixp kernel module.

==== Note ====
On some models ({{T40}}, {{T43p}}, ... {{R51e}} ...) audio is muted if either Headphone or Line Jack are unmuted. See also ALSA Wiki FAQ [http://alsa.opensrc.org/FAQ004]. Also, if Headphone Sense or Line Jack Sense are unmuted audio is dead ({{R52}}, {{X40}}). By default the Sense settings are not shown in GNOME.

==== Note ====
A bug was introduced in the 2.6.20 kernel (between the rc1 and rc2 releases) which causes the sound to stop working after hibernation. Rebooting does not seem to fix the problem. A quick work-around is to do a suspend-to-ram, and then wake the machine up. This issue is chronicled in this bug report on Launchpad.net:
The fix changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support worked very well. I don't know if it possibly could introduce other bugs or if it's a true fix.

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/80893

Changing HIBERNATE_MODE=shutdown to HIBERNATE_MODE=platform in /etc/default/acpi-support seems to be solving this issue for many users. Confirmed to work with: X31, T43p

=== FreeBSD OSS driver ===
snd_ich will work happily for this audio chip.

=== ThinkPads this chip may be found in ===
* {{G40}}
* {{R40}}, {{R40e}}
* {{R50}}, {{R50e}}, {{R50p}}, {{R51}}, {{R51e}}, {{R52}}
* {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}}
* {{X30}}, {{X31}}, {{X32}}
* {{X40}}, {{X41}}, {{X41T}}

[[Category:Components]]

=== See also ===
* [[Problem with audio clipping]]

Problem with audio clipping

2007-11-15T23:04:49Z

KotCzarny: /* Model-specific observations */

One some models, certain audio mixer settings may result in very "harsh" and distorted sound both on the internal speakers and on headphones plug. This is especially evident when the played audio has high volume (i.e., full dynamic range).

This is caused by a hardware flaw: excessive internal amplification saturates the audio channels, resulting in [http://en.wikipedia.org/wiki/Clipping_(audio) clipping].

Solution: reduce the volume on the responsible mixer channel(s).
e.g. in the console ''alsamixer'' with control via arrows: up/down left/right.

===Model-specific observations===
(you can use alsamixer panel to find out if setting to 100% amplifies anything)

* {{T43}} ([[AD1981B]] audio controller): PCM channel volume higher than 70% may result in clipping, regardless of the Master channel.
* {{R40}} (Intel 82801DB/DBL/DBM audio controller (AC97)): PCM volume needs to be set under 80%, higher values cause clipping. Same with the Master channel as on T43.
* {{R51e}} ([[AD1981B]] audio controller): PCM channel volume higher than 84% may result in clipping, regardless of the Master channel.
* {{Z61e}} (Intel High Definition with AD1981): Just turn down the PCM channel volume to at least 77% and you should be happy (in some combination with external speakers, 65% was needed), the Master Channel can be kept at 100%. If that doesn't help, loading snd-hda-intel with model=thinkpad and position_fix=1 might also improve a bit.
* {{X32}} ([[AD1981B]]) volume gain from alsamixer (gain for Line, CD, Mic, Phone, and Aux is identical as PCM)
** Master 100% == 0dB
** PCM 74% == 0dB
** PCM 100% == +12dB

Problem with audio clipping

2007-11-15T23:01:56Z

KotCzarny: /* Model-specific observations */

One some models, certain audio mixer settings may result in very "harsh" and distorted sound both on the internal speakers and on headphones plug. This is especially evident when the played audio has high volume (i.e., full dynamic range).

This is caused by a hardware flaw: excessive internal amplification saturates the audio channels, resulting in [http://en.wikipedia.org/wiki/Clipping_(audio) clipping].

Solution: reduce the volume on the responsible mixer channel(s).
e.g. in the console ''alsamixer'' with control via arrows: up/down left/right.

===Model-specific observations===
(you can use alsamixer panel to find out if setting to 100% amplifies anything)

* {{T43}} ([[AD1981B]] audio controller): PCM channel volume higher than 70% may result in clipping, regardless of the Master channel.
* {{R40}} (Intel 82801DB/DBL/DBM audio controller (AC97)): PCM volume needs to be set under 80%, higher values cause clipping. Same with the Master channel as on T43.
* {{R51e}} ([[AD1981B]] audio controller): PCM channel volume higher than 84% may result in clipping, regardless of the Master channel.
* {{Z61e}} (Intel High Definition with AD1981): Just turn down the PCM channel volume to at least 77% and you should be happy (in some combination with external speakers, 65% was needed), the Master Channel can be kept at 100%. If that doesn't help, loading snd-hda-intel with model=thinkpad and position_fix=1 might also improve a bit.
* {{X32}} volume gain from alsamixer (gain for Line, CD, Mic, Phone, and Aux is identical as PCM)
** Master 100% == 0dB
** PCM 74% == 0dB
** PCM 100% == +12dB

User:KotCzarny

2007-11-15T07:25:49Z

KotCzarny:

*miau*

* My current thinkpads stable:
** x30
** x32
** x41-tablet
** 760l
** i1300
** i1500

* Previously owned:
** 560e
** 560x
** 560z
** 570
** 770x
** t20
** x31

(i-series ones are not really a thinkpads but well..)

User:KotCzarny

2007-11-15T07:22:38Z

KotCzarny:

*miau*

* My current thinkpads stable:
** x30
** x32
** x41-tablet
** 760l
** i1300
** i1500
(i-series are not really a thinkpads but well..)

* Previously owned:
** t20
** x31

Talk:Problem with high pitch noises

2007-11-15T07:20:13Z

KotCzarny: /* Noise from BACKLIGHT */

==Discussion of "Limit ACPI CPU power states"==

*Stefan Baums: I raised this issue on the linux-kernel mailing list, and from there it was forwarded to the acpi-devel mailing list. See the discussion [http://sourceforge.net/mailarchive/forum.php?thread_id=7593600&forum_id=6102 here] and [http://sourceforge.net/mailarchive/forum.php?thread_id=7599419&forum_id=6102 here]. Results: The <code>idle=halt</code> kernel parameter disables ACPI C-state switching entirely (i.e., locks the processor in C1). It is preferable to pass to the ACPI processor component the option {{bootparm|max_cstate|2}}, which only disables the problematic states C3 and C4. The only way to accomplish this that worked for me was to compile the ACPI processor component permanently into the kernel (<tt>CONFIG_ACPI_PROCESSOR=y</tt>) and then enable it by adding the parameter {{bootparm|processor.max_cstate|2}} to the boot command line (and of course removing {{bootparm|idle|halt}}). Now the computer switches back and forth between C1 and C2, but avoids the noise-inducing C3 and C4, and frequency scaling works regardless. [Update: I now use the default Ubuntu kernel, with <code>processor</code> as a module, and disabled C3 and C4 by modifying {{path|/etc/init.d/acpid}} as explained on the article page.] ({{X41}})
*Simon Eggert: The {{bootparm|processor.max_cstate|3}} option worked for me on my {{T43p}} thanks.
* Adding <code>options processor max_cstate=2</code> in {{path|/etc/modprobe.conf}} (or {{path|/etc/modprobe.conf.local}} on my SuSE 9.3 installation) prevents the CPU permanently from entering into C3 and higher states. ({{X40}}, {{R52}})
* [[User:Thinker|Thinker]]: On one {{T43}}, this worked even with {{bootparm|processor.max_cstate|3}}. That is, C3 was silent and only C4 produced whining (at both HZ=100 and HZ=250).
* [[User:Thinker|Thinker]]: These options affect power consumption when the CPU is idle. Here are the figures on one ThinkPad T43:
** {{bootparm|processor.max_cstate|4}}: 15160mW (default, noisy)
** {{bootparm|processor.max_cstate|3}}: 15770mW (660mW higher, silent)
** {{bootparm|processor.max_cstate|2}}: 16100mW (2940mW higher, silent)

* [[User:Gsmenden|gsmenden]]: On a debian system, no modprobe.conf, can use modutils to add max_cstate line. On my t43p the noise only occcurs when on battery power after suspend / resume cycle. It is definitely is still present when hard disk is spun down. Nevertheless there may be multiple sources of this (quite annoying) sound.

* [[User:Gsmenden|gsmenden]]: Update - if you don't want to use modutils, can manually load it on bootup by adding "processor max_cstate=3" in /etc/modules on a debian system. Noise still present upon resume though on my t43p though :(

* [[User:Nephiel|Nephiel]]: My {{Z60m}} also had the "screeching when on battery" problem with Ubuntu 5.10. Editing {{path|/etc/init.d/acpid}} as described worked. It needed C2: C3 was quieter but still noticeable.

* Michael Kiausch: On my {{x41}} the noise disappears on unloading uhci-hcd module (no matter which c-state), unfortunately this is not an option as this disables usb. ''edit:'' only works if HZ=100

* Just tested M. Kiausch's suggestion on a {{t43}}. The high-pitch noise is gone (HZ=100, cstate=4), but there is a low-pitch noise with about the same "beat". It is much less audible though, and I really had to keep an ear close to the exhaust to hear it. But the noise is still there.

* Michael Kiausch: You're right, same low-pitch-noise on {{x41}}, but it is really hard to hear. Does anyone know in which way the usb-uhci is related to the c-states?

* [[User:Slurm|Slurm]] The high-pitch noise occurs on my x41 only if i'm on battery and my mouse(usb, optical) is plugged in.

* Martin Aumueller: Upgrading the BIOS on my X60s from 1.04 to 1.06 solved the noise problem for me, however it seems to draw about 500 mW more power with the newer BIOS.

* [[User:Piccobello|Piccobello]]: on an {{X31}}, I noticed a very weak sound that seems to be turned on whenever I switch to the '''performance''' governor, and is only turned off if I switch to '''powersave''', regardless of wether the battery is used.

== Harddisk related noise ==

on my T43p the noise definitely comes from the harddisk and can be heard both in Windows and Linux. Only at boot time, before the harddisk spins up, or when I manually spin down the harddisk with

{{cmdroot|hdparm -y /dev/sda}}

the system is silent.

Hi, I don't have an IBM but Dell Latitude D410 laptop. My problem is that not only the high pitch noise is produced but the processor itself comes very busy when speedstep-centrino module is loaded. On karamba monitor (not very reliable but I can feel the difference) I get 50-100% processor occupation. Right now I'm recompiling my 2.6.14 kernel to 100Hz timer freq. (was 250) and we'll see what happens.

If you have any suggestions don't hestite since I practically can't use speedsteping because battery discharges rapidly

Cheers
Wojtek

== Noise from Wlan ==
Hi, I have a high frequency noise from my wifi modul: It occurs only with linux, only in battery mode. Disabling wifi via hardware switch disables the noise!<br>
Any Ideas?<br>
Florian<br><br>
EDIT: Giving the cpus something to calc disables the noise, too!<br>
EDIT2: "Turn off CPU power saving in in BIOS" seems (!!) to solve the problem! But where is the connection to the wlan?

== Noise from Fan ==
http://forum.thinkpads.com/viewtopic.php?p=171683

== Noise from Microphone on the T60 ==
I found out that the "pitching" noise while workin on battery could be solved else as setting "cstate" to "2" and loosing battery time.

The real problem about the pitching noise on my T60 is the misplacement of the microphone, which seems to be vulnerable to the frequencies the processor is generating on cstates above "2"!

Now the fix which has worked for me is:

Setting the module option "position_fix=2"!

Thanks to the existing Thinkwiki article about the soundcard:
http://www.thinkwiki.org/wiki/AD1981HD

Debian:
open up the /etc/modprobe.d/alsa-base file and go to the line where "snd-hda-intel" is loaded.
After this line insert "options snd-hda-intel position_fix=2".

Reload your alsa config and enjoy the silence!!!

== Noise from BACKLIGHT ==

Dimming display (via fn-home/end or acpi) results in a high pitched noise.
Only solution is to keep lcd at full brightness or turned off.
[http://en.wikipedia.org/wiki/Burst_dimming More info about dimming used in laptops]

I ([[User:KotCzarny|KotCzarny]]) have noticed this problem in: {{X30}}, {{X31}}, {{X32}}, {{X41_Tablet}}.