linux-kernel - Re: acerhdf: stilll fighting between kernel and BIOS?

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Date:	Sun, 22 Nov 2009 22:27:50 +0100
From:	Peter Feuerer <peter@...e.net>
To:	Adrian von Bidder <avbidder@...tytwo.ch>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: acerhdf: stilll fighting between kernel and BIOS?

Hey Adrian,

issues with AOA 150 netbooks should be solved with current 2.6.32-git tree. 
You can also try to use latest acerhdf of http://piie.net

kind regards,
--peter

Adrian von Bidder writes:

> Heyho!
> 
> With 2.6.31 (as packaged by Debian), kernel and BIOS are still fighting over 
> who controls the fan on my Acer AOA-150.
> 
> If the system is idle, I see repeated 
> 
> Nov 20 08:07:12 laeggerli kernel: [100246.224141] acerhdf: temp 51      
> Nov 20 08:07:12 laeggerli kernel: [100246.272136] acerhdf: fan OFF      
> Nov 20 08:07:22 laeggerli kernel: [100256.328145] acerhdf: temp 51      
> Nov 20 08:07:22 laeggerli kernel: [100256.376072] acerhdf: fan OFF      
> 
> (and the fan is turned on and off accordingly, using a rather noisy speed 
> for ca. .5s every time.)
> 
> As soon as the system gets a bit warmer, fan is running on low speed and the 
> system is much quieter.
> 
> ISTR reading that this should have been fixed in 2.6.31, or was that wrong?  
> Did anything change in current kernels or the separate releases of the 
> acerhdf driver?  I might be able to run newer driver releases, or at least I 
> can provide more info if desired (and if you're patient to deal with quite 
> slow round trip times from my side.  It's not an urgent problem either.)
> 
> 
> cheers
> -- vbi
> 
> -- 
> featured product: ClamAV Antivirus - http://www.clamav.net/
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