Subject: Re: Bug in i810 kernel module
To: stephane@antefacto.com
Date: Mon, 12 Feb 2001 15:04:33 +0000 (GMT)
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <0102121440560G.00759@steph> from "Stephane Dudzinski" at Feb 12, 2001 02:40:56 PM
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Message-Id: <E14SKWq-0007Dc-00@the-village.bc.nu>
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Sender: linux-kernel-owner@vger.kernel.org

> I've compiled the brand new 2.4.1 with the i810 module (the one which plays 
> mp3s 15% faster than the usual speed). I did a hack modifying this line into :
> /usr/src/linux/drivers/sound/i810_audio.c and modified the clocking as 
> follows : 
> 
> static unsigned int clocking=41194;
> 
> I don't think this why i got this behavior but using xmms sucked 98% of the 
> CPU time reading either mp3s or ogg files. Something is definitly wrong with 
> this driver as ALSA ones work just fine (xmms then uses only 0.5% of the CPU 
> time).

Or something is wrong with xmms. Right now I dont know which. I can tell you
the speed thing is unrelated. Certain vendors wire the ac97 codecs to the wrong
clock to save board space/crystals - notably dell laptops. That is why the
clocking value is a module option and you can select 'fix the sound on dell'
mode with the module option ftsodell=1

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