Burning Hot ASUS-6V6

[Nate Lawson]

Laganakos Vassilis wrote:
> 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.

Try booting with acpi disabled.

> 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.

Load the cpufreq driver at boot, add this to /boot/loader.conf:
cpufreq_load="YES"

Then run powerd in /etc/rc.conf:
powerd_enable="YES"

-- 
Nate