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Date: Tue, 21 Dec 2004 06:43:07 -0600
From: Nikolas Britton <freebsd@nbritton.org>
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cc: freebsd-questions <freebsd-questions@freebsd.org>
Subject: Re: Armada 17xx, ACPI thermal management broken.
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Nikolas Britton wrote:

> Hello,
> I have a Compaq Armada 1750 laptop and ACPI is some what broken. If I 
> enable ACPI the fan will never run causing the system to overheat and 
> shutdown, there are a few other problems with ACPI but this is the 
> major one. This is a standard 440BX/MX chipset (82443BX) so I don't 
> understand why this doesn't work yet with FreeBSD, Is this a problem 
> with my DSDT/AML/ASL whatever? The work around in the bug report I 
> submitted ( http://www.freebsd.org/cgi/query-pr.cgi?pr=i386/72566 ) 
> does not work if the system is below the hw.acpi.thermal.tz0._ACx 
> threshold, if it is below this threshold at system boot the fan will 
> NEVER turn on even if hw.acpi.thermal.tz0.active=1 is set in loader.conf.
>
> Any help would be appreciated on ether fixing this problem or a way to 
> use ACPI but disable the thermal monitoring so the system can control 
> the fan?
>
> Also... in the bug report there is a link to a Linux kernel patch that 
> fixes this problem.
>
>
Also is it not possible to just extract the AML code from that patch an 
use it to make a FreeBSD patch? I don't know as I'm not a programmer and 
I'm not sure of GPL issues