Len Brown escreveu:
On Thursday 02 August 2007 04:40, Knut Petersen wrote:
mainboard: AOpen i915GMm-hfs, AWARD BIOS
cpu: Pentium-M 750 (0.8 to 1.86 MHz)
openSuSE 10.2 with kernel 2.6.22.1
The cpu fan can not be controled by linux kernel.
The BIOS will switch on the cpu fan a bit above 50 deg. Celsius.
The active and passive trip points both are set to 50 deg. Celsius.
Temperature of the idle cpu at 800 Mhz: 34 to 42 deg. C.
The BIOS never changes the trip points.
Cpufreq does work perfectly.
On my Toshiba M45-S355 (Toshiba Bios, Pentium M 750 - 0.8 at 1.86GHz,
Debian Etch) I see the same using Kernel 2.6.21.6
Previously there was the possibility to add something like
echo "100:0:65:70:0" > /proc/acpi/thermal_zone/THRM/trip_points
echo 2 > /proc/acpi/thermal_zone/THRM/polling_frequency
echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
I never do that, but see below (Kernel 2.6.21.6):
cat /proc/acpi/thermal_zone/TZCL/trip_points
critical (S5): 105 C
cat /proc/acpi/thermal_zone/TZCL/polling_frequency
polling frequency: 2 seconds
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
ondemand
Regards,
Renato S. Yamane
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