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Lenovo ThinkPad T420s
From Gentoo Wiki (test)
Configuration
FILE
/etc/portage/make.confCHOST="x86_64-pc-linux-gnu"
CFLAGS="-march=corei7 -O2 -pipe"
CXXFLAGS="${CFLAGS}"
CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3"
VIDEO_CARDS="intel i965"
INPUT_DEVICES="evdev synaptics"
Fan control
Fan control needs to be explicitly allowed:
FILE
/etc/modprobe.d/thinkpad_acpi.confoptions thinkpad_acpi fan_control=1
Turn off:
root #echo level 0 > /proc/acpi/ibm/fanMaximum measured speed:
root #echo level 7 > /proc/acpi/ibm/fanAutomatic speed (default):
root #echo level auto > /proc/acpi/ibm/fanMaximum speed:
root #echo level disengaged > /proc/acpi/ibm/fanHardware
Note: You can use this file with the kernelconfig script to verify your kernel configuration or build a new kernel with the right configuration.