Date: Thu, 03 May 2007 14:42:01 -0700 From: Nate Lawson <nate@root.org> To: Laganakos Vassilis <elfshadow@physics.upatras.gr> Cc: freebsd-acpi@freebsd.org Subject: Re: Burning Hot ASUS-6V6 Message-ID: <463A5729.5010908@root.org> In-Reply-To: <20070503210527.GA5660@pythagoras.physics.upatras.gr> References: <20070503210527.GA5660@pythagoras.physics.upatras.gr>
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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
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