Laptop fan problem.

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Date: Thu, 16 Dec 2004 14:51:40 +0300
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Hello. I have a toshiba M30 laptop, on which I have installed freebsd 
5.3. I have enabled speedstep support with est and estctrl ports and 
it seems to work except a little problem: the fan almost never turns 
on and laptop turns really HOT! I have tried to change some sysctls 
but they seem to be non-writable. here they are:

% sysctl -a|grep thermal
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.tz0.temperature: 3512
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 3912
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 3922
hw.acpi.thermal.tz0._ACx: 3912 3912 -1 -1 -1 -1 -1 -1 -1 -1

391,2 K -- I think it is rather high :) How to change this or make the 
fan turn on more frequently?
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