linux-kernel - Re: Uppgrade from OpenSuse 11.1 to 11.2 causes Acer laptop to overheating...

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Date:	Sat, 30 Jan 2010 20:56:44 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Sebastian <beyonder7@...n.pl>
Cc:	linux-kernel@...r.kernel.org,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Thomas Renninger <trenn@...e.de>
Subject: Re: Uppgrade from OpenSuse 11.1 to 11.2 causes Acer laptop to overheating...

On Saturday 30 January 2010, Sebastian wrote:
> Hello,
> I desperately seeks help or any advice from kernel experts.
> I have Acer Aspire 5315 laptop and when I updated my OpenSuse 11.1 to 
> 11.2 the laptop started to shut down to prevent overheat.
> I noticed that no fan is running and trying and playing with sensors, 
> sometimes I get information from one sensor that always says 40C, and 
> sometimes also
> from coretemp sensor that shows rapidly increasing temperature from 50C 
> to 85-89C.
> 
> I have this problem with base and pae kernel that was attached to 
> opensuse installation dvd, and later upgraded it for 2.6.33-r5 from 
> OpenSuse Factory repo - results the same.
> Does any expert have some suggestions?
> 
> On several message boards there are advice that flashin BIOS should 
> solve the problem, but IMO it can be the only solution - Linux shouldn't 
> work that way.
> On the same machine i have XP and everything is OK, stable temperature 
> is maintained, I also recently clean the vents from dust and other stuff.

First off, this seems to be ACPI-related, so added some CCs in that direction.

Second, since you decided to report the bug directly to the kernel developers,
would you be able to test non-distro kernels on your machine?

Rafael
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