This article fall under my How to Sections and will be reported here for later brain dump restore
Well, what’s about the topic? I installed and configured some performance monitoring stuff (will write a HowTo later for this one) and
realized that my fan-speed on the ThinkPad T400 was extreme slow, while thermal sensor tell me CPU temp is increasing.
I did some research and found the following to work for my Ubuntu config:
Karma w/ 2.6.31-22-generic-pae – (PAE because I used a 32-bit with 4GB RAM).
create new file ” vi /etc/modprobe.d/thinkpad_acpi.conf” and add the following line “options thinkpad_acpi fan_control=1”
Do some sort of “modprobe -r thinkpad_acpi && modprobe thinkpad_acpi” OR reboot (<– only for lamers )
which enables you to perform some sort of actions with the fan:
cat /proc/acpi/ibm/fanstatus: enabled speed: 3416 level: auto
commands: level <level> (<level> is 0-7, auto, disengaged, full-speed)
commands: enable, disable
commands: watchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))
echo level 7 > /proc/acpi/ibm/fanOR $
echo level full-speed > /proc/acpi/ibm/fanOR
$ echo level auto > /proc/acpi/ibm/fan
Have some Fun and as always I have tested it before post!