Re: cpufreq stops working after a while

From: Mark Lord
Date: Fri Aug 11 2006 - 17:51:38 EST

Pallipadi, Venkatesh wrote:
Mark Lord wrote:
Yup, thermal.
Trips shortly after I see 66C in /proc/acpi/thermal_zone/THM/temperature

If I stop number crunching for a bit, the temperature drops down to the
low 50's, and the max freq then gets set back to 1100.

Mmmm.. is there a way to control the high/low thermostat values there?
What is the "cooling mode" you have in
Output of all files in that directory will help.

<setting not supported>
cooling mode: critical

<polling disabled>

state: ok

temperature: 49 C

critical (S5): 95 C


This is a passively cooled notebook, so there's no fan
to control. They probably self-limit the CPU speed when
the temperature gets high to prevent meltdown of the drive.

But I would like to raise the lower limit if possible,
allowing the speed to bump back up at, say 58C rather
than waiting for 52C as it currently does.


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