Installing Gentoo on a ThinkPad X40
Contents
kernel compilation
ipw2200 driver (intel wireless nic)
don't forget to compile it as a module : http://bugs.gentoo.org/202557
zen kernel
tuxonice compression
cf http://en.gentoo-wiki.com/wiki/TuxOnIce :
select lzo compression in "make menuconfig"
change tuxonice.conf accordingly
Tips
laptop_mode and other power management tips
http://www.gentoo.org/doc/en/power-management-guide.xml
Fan Control : http://en.gentoo-wiki.com/wiki/Lenovo_Thinkpad_T61#Fan_control
(note that if Fan Control doesn't seem to work anymore after a system update you may need to run pwmconfig again and select manual controls by answering "y" at the first question)
CPU Undervolting
I've used phc with the hagan voltages found on : http://www.gentoo-wiki.info/Pentium_M/Undervolting which translate to the following phc vids :
x40 ~ # cat /sys/devices/system/cpu/cpu0/cpufreq/phc_vids 14 12 10 8 6 4 2 0
Note : some versions of linux 2.6.34 need to be patched for phc_intel to be loadable : http://www.linux-phc.org/forum/viewtopic.php?f=8&t=195
The packages sys-power/phctool and sys-power/phc-intel with support up to 2.6.36 were included in the main tree.
(exploration notes : the phc kernel patch is included in sys-kernel/zen-sources see also : http://zen-kernel.org/included-code and http://forums.gentoo.org/viewtopic-t-805069.html )
x11 with x11-drivers/xf86-video-intel-2.9.1 crashing the machine
Apparently solved with x11-drivers/xf86-video-intel-2.11.0 : http://forums.gentoo.org/viewtopic-t-803621.html
External Sources
- Installation tutorial (German)
- x40 Installation tutorial using acpi (German)
