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Date: Fri, 14 Dec 2007 04:21:40 -0800
From: Jeremy Chadwick <koitsu@FreeBSD.org>
To: tequnix@frogmi.net
Message-ID: <20071214122140.GA30568@eos.sc1.parodius.com>
References: <20071214105320.6d199922@jadzia.intern.creative.co.at>
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Cc: freebsd-stable@freebsd.org
Subject: Re: BETA4 - acpi.thermal.tz0 always at 40,0C
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On Fri, Dec 14, 2007 at 10:53:20AM +0100, tequnix@frogmi.net wrote:
> sysctl shows __always__ 40°:
> 
> $ sysctl hw.acpi.thermal.tz0.temperature
>   hw.acpi.thermal.tz0.temperature: 40,0C
> 
> motherboard is a Asus M2A-VM, version is FreeBSD 7.0-BETA4 amd64
> 
> is this a motherboard issue, or a known issue, or a bug, can anybody
> confirm this behaviour, should i send_pr ?

It's very likely an ACPI configuration problem (with the motherboard/
motherboard BIOS).  I have some Asus boards which claim to support
the ACPI thermal zone stuff, but an ACPI configuration dump shows
the value being returned as a static 40C (e.g. the value is hard-coded
and isn't tied to any hardware).

You could use acpidump -d to confirm this.

-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |