Re: Asus P5LD2 SE AD1986A snd-hda-intel model and master volume control

[Daniel Jacobowitz <drow@false.org>]

On Mon, Oct 16, 2006 at 05:05:21PM +0200, Takashi Iwai wrote:
> At Mon, 16 Oct 2006 10:43:26 -0400,
> > Or you could adapt the patches I just posted to bind the existing
> > controls :-)
> 
> I've not seen any posts yet...

Weird!  I got a copy back, and it shows up in the sourceforge archives
(Subject: Ganged volume).  Let me know if you want another copy.

> > I'm not sure if there's any advantage, if your PCM control affects
> > all channels; mine only affected front.
> 
> Depends on the codec chip design.
> 
> When you can adjust the volume of each channel at the output PIN (or
> in an earlier path), it's rather annoying that "PCM volume" changes
> only front output.  This will end up with 3 PCM volume controls for
> front, rear and CLFE, which are complex but useless, IMO.

As far as I could tell from the block diagram for the vt1617a, the
master volume affected the output of only the front channel, and the
PCM volume affect the input of only the front channel.  I'm not
entirely clear on why that's useful :-)

-- 
Daniel Jacobowitz
CodeSourcery

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