Re: i810 audio

From: Peter Kundrat (
Date: Tue Nov 12 2002 - 18:52:56 EST

On Tue, Nov 12, 2002 at 11:38:04PM +0000, Alan Cox wrote:
> On Tue, 2002-11-12 at 23:06, Brian C. Huffman wrote:
> > Alan / All,
> >
> > I assume this is the patch that's been in your -ac kernels for a
> > while? I have an Intel 845GBV board which uses the ICH4 architecture.
> > I'm happy to report that this patch does allow me to use the integrated
> > sound on this motherboard, but one thing that I've noticed is that it
> > seems as though to adjust volume you need to adjust the actual channel
> > (PCM, CD, etc), rather than main volume. Any ideas why this might be so?
> It could be the mixer on your board doesnt support main volume control.
> The i8xx audio is half of a whole, it deals with transferring streams of
> audio data and mixer requests down an AC'97 audio bus to a codec which
> does the D/A parts. That codec varies by board.

My board (i815) has also i810 onboard audio and the main control doesnt
work too (i had problmes getting it working with oss driver, but didnt
have much time trying different kernels).

What works as a main control, though, is control labelled Headphones
(in alsamixer).


Peter Kundrat
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