fan running...ACPI problem?
i'm a linux newbie, so go light on me:) i'm using mandrake 10.1 (2.6.8 kernel) on a centrino laptop. i have noticed that the fan runs all the time; usually just a low whirr, but it speeds up when some cpu-intensive stuff is going on. i have win xp installed (dual boot), which runs with NO fan at all most of the time. i have enabled the cpufreq stuff, and am using the "ondemand" frequency scaling governor. my cpu runs at 600 MHz most of the time (out of a total of 1.4 GHz), so that should not generate heat. overall it seems to be pretty cool, but i have NEVER experienced that the fan is completely off.
when i go to the /proc/acpi directory there is a fan/ directory, but it's empty (as is the thermal_zone/ directory). i get:
$ acpi -V
No support for device type: thermal
AC Adapter 1: on-line
is there some fan module or something that is not loaded with ACPI? i have read several threads about fan/ACPI problems, but not found any solutions to my problem. any response greatly appreciated!