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Date: Fri, 4 May 2007 00:05:27 +0300
From: Laganakos Vassilis <elfshadow@physics.upatras.gr>
To: freebsd-acpi@freebsd.org
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Subject: Burning Hot ASUS-6V6
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Hi,

I have a problem with my laptop, it gets very hot (~70C) after operating
for a while. I use FreeBSD-6-Stable, and it has this problem for a long
time now. Actually I think it always had it, but I'm fed up with this.

I tried various things I read in the mailing list, but I don;t know many
things about how acpi handles the fans to control the temperature of the
cpu, etc.

My sysctl hw.thermal after the changes in hw.thermal.tz0._PSV and
hw.thermal.user_override.

hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 1
hw.acpi.thermal.tz0.temperature: 73.0C
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.passive_cooling: 0
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 90.0C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 127.0C
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1

It seems that the device dowes not support setting passive cooling:

celeborn# sysctl hw.acpi.thermal.tz0.passive_cooling=1
hw.acpi.thermal.tz0.passive_cooling: 0
sysctl: hw.acpi.thermal.tz0.passive_cooling: Operation not supported by device

and it neither supports active:

celeborn# sysctl hw.acpi.thermal.tz0.active=1
hw.acpi.thermal.tz0.active: -1 -> -1

Kernel is already loaded with acpi.ko and asus_acpi.ko modules.

Any clues how to tackle this? I was thinking if I could set the cpu to
run at a lower frequency, when I'm not doing something "heavy" might
help.

Kind regards,


Vassilis
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