[alsa-devel] [1/4] 2.6.23-rc3: known regressions v3

[Ivan N. Zlatev]

On 8/24/07, Michal Piotrowski <michal.k.k.piotrowski at gmail.com> wrote:
> ALSA
>
> Subject         : Master volume control broken
> References      : http://lkml.org/lkml/2007/8/18/46
> Last known good : ?
> Submitter       : Thomas Meyer <thomas at m3y3r.de>
> Caused-By       : Ivan N. Zlatev <contact at i-nz.net>
>                   commit 5d5d3bc3eddf2ad97b2cb090b92580e7fed6cee1
> Handled-By      : ?
> Status          : unknown
>

Thomas Meyer,

The commit just adds the pinconfigs which Mac OS X and win32 use for
the Intel Macs (intel hda audio with the Sigmatel STAC9221 codec).

For me "Master" works fine with the speakers/headphones plugged in.
The volume of the internal speakers is bound to "Front" in the mixer
(can also be controled by "PCM"), but does not react to the "Master".
I've just thought this is by design - one can maintain two volume sets
for the internal speakers and the external speakers. I am probably
wrong.

In the meanwhile if you want to use your "fancy multimedia control
keys" as a workaround you could try to bind your multimedia keys to
execute:
volume up: amixer -q set PCM 10%+
volume down: amixer -q set PCM 10%-

I have attached codec info and amixer output for Tiwai.

Regards,
-- 
Ivan N. Zlatev

Web: http://www.i-nZ.net
"It's all some kind of whacked out conspiracy."
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