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Re: Disabling the thermal zones

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Alexandre "Sunny" Kovalenko

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Mar 20, 2010, 7:58:57 AM3/20/10
to NX_DA...@yahoo.com, freebs...@freebsd.org
On Fri, 2010-03-19 at 21:52 -0700, Adrian Higgs wrote:
> I've got a constant annoyance on my hands, the acpi module keeps forcing my laptop to shutdown due to its thermal limits. Is there any way I can disable the thermal monitor for this module?
>
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It depends on the actual culprit -- temperature values reported by ACPI
are absurd, _CRT value is absurd, fan control is broken, heatsink is not
attached properly to the CPU, etc. You could start out by posting make
and model of your laptop as well as the output for

sysctl hw.acpi.thermal.tzN

for all values of N that exist on your system.

--
Alexandre Kovalenko (Олександр Коваленко)

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Peter Jeremy

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Mar 22, 2010, 3:56:06 PM3/22/10
to Adrian Higgs, freebs...@freebsd.org
On 2010-Mar-19 21:52:15 -0700, Adrian Higgs <nx_da...@yahoo.com> wrote:
>I've got a constant annoyance on my hands, the acpi module keeps
>forcing my laptop to shutdown due to its thermal limits. Is there any
>way I can disable the thermal monitor for this module?

As mentioned, your first step is to work out why you are getting ACPI
shutdown events by reviewing the output from "sysctl hw.acpi.thermal"
and also confirm that the shutdowns really are spurious - dust buildup
on CPU cooling fins is fairly common and there have been issues in the
past where incorrect amounts of heatsink compound resulted in overheating.

It _is_ possible to alter the ACPI thermal limits by first setting
hw.acpi.thermal.user_override=1 but you need to be confident that you
aren't masking a real problem or you could damage your laptop.

--
Peter Jeremy

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