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Some notes I took for my install (drop me a line at koalillo-at-fastmail-dot-fm):

IBM ThinkPad {{T42}} (2373VUW)

I installed [[:Category:Debian|Debian Sarge]] (testing with selected packages from unstable/experimental).

== Kernel ==
 
* Set preemptive kernel
* Add madwifi
* Add patch from: http://bugme.osdl.org/show_bug.cgi?id=3022 , adding the 2373VUW model
* Add swsusp
* {{cmduser|make-kpkg --append-to-version -t42 --initrd kernel_image modules_image}}

== Additional packages ==

* acpid
* alsa-base, alsa-utils, alsa-oss
* anacron
* gnome-volume-manager
* libc6-i686
* tpb for OSD display of IBM keys and remapping the Access IBM key

== Frequency scaling ==
 
* Load modules: cpufreq_ondemand, speedstep-centrino
* Add the following to your startup sequence {{cmdroot|echo >/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ondemand}}

== HDAPS ==

* Add module hdaps
* Add package hdaps-utils

== Additional modules ==

* ibm_acpi
* nvram

== ACPID ==

* To map Fn-F4 (suspend) and Fn-F12 (hibernate)

{{path|/etc/acpi/events/ibm}}
 event=ibm/hotkey
 action=/etc/acpi/ibm.sh %e

{{path|/etc/acpi/ibm.sh}}
 #!/bin/sh
 case $4 in
        00001004) /usr/local/sbin/suspend.sh mem ;;
        0000100c) /usr/local/sbin/suspend.sh disk ;;
 esac

{{path|/usr/local/sbin/suspend.sh}}
 #!/bin/sh
 ifdown ath0
 echo -n $1 >/sys/power/state
 ifup ath0
 /etc/init.d/hotplug restart # testing if this solves my Bluetooth problems, see below

* Add {{cmdroot|echo enable >/proc/acpi/ibm/hotkey}} to enable hotkey reporting to ACPI

== GRUB ==

* Add resume=<swap device> so that the system finds the hibernated ram on power up
* Add a noresume option to boot without recovering the hibernation

== Caveats ==

* Using cifs causes hiccups suspending/hibernating, use smbnetfs
* I get some USB errors when enabling/disabling Bluetooth after sleep/hibernation, like: {{cmdresult|usb 4-1: device not accepting address 5, error -71}} googling around it seems like restarting hotplug (or reloading the usb modules) solves the problem... I'll test that.

=External Sources=
*This guide is listed at the [http://tuxmobil.org/ibm.html TuxMobil Linux laptop and notebook installation survey (IBM/Lenovo)].
[[Category:Debian]]