[alsa-devel] Handling of the DXS controls in the via82xx driver

[Raymond Yau]

2010/3/28 Soeren D. Schulze <soeren.d.schulze at gmx.de>

> Hi everyone,
>
> amixer cset numid=47,iface=PCM,name='PCM Playback Volume' 24,24
>
> When restarting mplayer, the volume is reset to 31,31 (maximum).  Commit
> 3d00941371a765779c4e3509214c7e5793cce1fe
> [
> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.33.y.git;a=commit;h=3d00941371a765779c4e3509214c7e5793cce1fe
> ]
> seems to be responsible for this.
>
> The bad thing about it is that 31,31 is a really bad setting for my
> poorly engineered sound card.  It distorts a lot.
>
>
>
> Sören
>

In theory , the driver should reset the per voice volume control to 0dB
after the subdevice is opened , may be something wrong in dB scale of these
volume control  if you get distorted sound