IBM ThinkPad T23

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Revision as of 23:46, 11 July 2008 by Misfit138 (talk | contribs) (Laptop Mode Tools)
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Reference Information

Extensive information about Linux on the T23 can be found at [1]. What follows here are details specific to Arch Linux.


Works with no known issues. The point releases "Voodoo" and "Don't Panic" work without problems.



Yes, this didn't work from the beginning for me, but here is the solution:

keycode 77 = Num_Lock

Ad that line to your ~/.xmodmap file.


tpb (for Thinkpad Buttons) is available through pacman:

pacman -S tpb

tpb adds an on-screen volume bar for the volume buttons, THINKPAD button assignment, on-screen messages for Thinklight, (on and off) and more.


Works fine after reading the Pm-utils page.

Suspend and Hibernate

Works well with pm-utils. May be called from command line as root:

# pm-suspend


# pm-hibernate

May also be called when closing the lid-

/etc/acpi/events/lid :

#action=echo POWEROFF |  /usr/lib/xfce4/xfsm-shutdown-helper # shutdown with Xfce
#action=/opt/kde/bin/dcop --all-users --all-sessions ksmserver ksmserver logout 0 2 0 # Shutdown with KDE

Or, from the power button event-


 # /etc/acpi/events/power
 # This is called when the user presses the power button
 event=button/power (PWR.||PBTN)
 action=echo POWEROFF |  /usr/lib/xfce4/xfsm-shutdown-helper # shutdown with Xfce
#action=/opt/kde/bin/dcop --all-users --all-sessions ksmserver ksmserver logout 0 2 0 # shutdown with KDE

Restoring network and sound on resume

Create /etc/pm/sleep.d/suspend with the following content:

/etc/rc.d/network restart
mixers="Master PCM CD"
for mixer in $mixers ; do
  /usr/bin/amixer -q sset $mixer mute
    /usr/bin/amixer -q sset $mixer unmute

This will simply restart your network and mute/unmute the sound, which restores functionality on resume.

Laptop Mode Tools

The Linux kernel, starting from version 2.6.6, contains a feature called laptop mode. This feature is also present in the Linux 2.4 series starting from version 2.4.23. When you enable this feature, The kernel allows your hard drive to spin down more often, resulting in significant power savings. To make laptop mode work, you need to install the userspace tools. The Laptop Mode Tools package contains everything you need to make laptop mode work. Laptop Mode Tools Website)

To install laptop-mode-tools:

pacman -S laptop-mode-tools

Add laptop-mode to your DAEMONS array in /etc/rc.conf:

DAEMONS=(@network @acpid  @syslog-ng @alsa @hal @fam @laptop-mode)


They work better after loading the thinkpad-acpi module, to assign the generated keycodes to there supposed functions.

As of December 2007, they don't work properly, since HAL is messing around with it's improvments. Read further in the Troubleshooting section.


Works with driver xf86-video-savage.

Here is the mentioned file, for those who don't have a working configuration yet:

# /etc/X11/xorg.conf (xorg X Window System server configuration file)

Section "Files"
	FontPath	"/usr/share/fonts/X11/misc"
	FontPath	"/usr/X11R6/lib/X11/fonts/misc"
	FontPath	"/usr/share/fonts/X11/cyrillic"
	FontPath	"/usr/X11R6/lib/X11/fonts/cyrillic"
	FontPath	"/usr/share/fonts/X11/100dpi/:unscaled"
	FontPath	"/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/fonts/X11/75dpi/:unscaled"
	FontPath	"/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/fonts/X11/Type1"
	FontPath	"/usr/X11R6/lib/X11/fonts/Type1"
	FontPath	"/usr/share/fonts/X11/100dpi"
	FontPath	"/usr/X11R6/lib/X11/fonts/100dpi"
	FontPath	"/usr/share/fonts/X11/75dpi"
	FontPath	"/usr/X11R6/lib/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"vbe"

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
#	Option		"XkbLayout"	"de"
	Option		"XkbLayout"	"gb"
#	Option		"XkbVariant"	"nodeadkeys"

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
#	Option		"Emulate3Buttons"	"on"
# Emulating the Wheel.
	Option          "EmulateWheel"          "on"
	Option          "EmulateWheelButton"    "2"

#Section "InputDevice"
#	Identifier	"Synaptics Touchpad"
#	Driver		"synaptics"
#	Option		"SendCoreEvents"	"true"
#	Option		"Device"		"/dev/psaux"
#	Option		"Protocol"		"auto-dev"
#	Option		"HorizScrollDelta"	"0"

Section "Device"
	Identifier	"S3 Inc. SuperSavage IX/C SDR"
	Driver		"savage"

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync 	28-51
	VertRefresh	43-60
DisplaySize 271 201 # 96 DPI @ 1024x768

Section "Screen"
	Identifier	"Default Screen"
	Device		"S3 Inc. SuperSavage IX/C SDR"
	Monitor		"Generic Monitor"
	DefaultDepth 	24	
	SubSection "Display"
		Depth		16
		Modes		"1024x768"
	SubSection "Display"
		Depth		24
		Modes		"1024x768"

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"

Section "DRI"
	Mode	0666

Maybe I'll find some time to clean up this conf. :-)

The new version of has a "bullet proof" runtime mode, allowing to use X without any configuration. However, this mode wasn't testet yet.




The xf86-video-savage driver, version 2.1.2-3 is buggy and broke down the DRI acceleration. Since version 2.3.1-1 was released, this problem doesn't remain anymore.

Compositing and friends

AIGLX and stuff like this doesn't work, since the driver claims this typicall error:

libGL warning: 3D driver claims to not support visual 0x4c

Anyway I have read some information about using xcompmngr and VESA drivers to get some kind of compositing to work. But I haven't played around with stuff like this yet, since it doesn't bother me much and the graphics card isn't powerfull anyway.


More to come...

More Resources

Thinkwiki [2]

Category T23 at Thinkwiki [3]