[MPlayer-users] cannot find simple control PCM

[Reimar Döffinger]

On Fri, Feb 27, 2009 at 09:10:07AM +0000, peng shao wrote:
> Hi dear all. I have an M-audio 24/96 sound(ICE1712 chipset) card on my
> machine. I just compiled
> MPlayer SVN-r28737-4.1.2 (C) 2000-2009 MPlayer Team
> 
> However, i found that when I was trying to open any media file by gmplayer,
> I got constantly error message
> [AO_ALSA] Unable to find simple control 'PCM',0.
> on my screen. But mplayer was working pretty well.
> 
> I do not know what I should use as alsa_mixer_channel, I tried PCM Out,
> Front, balbalaba. but none of them worked....

Use
amixer | grep -B1 pvolume
to find a list of possible values, one of them should be the right one.
On my previous laptop e.g. the correct name was 'vol',0.
'Master',0 tends to work, too if you don't mind changing the volume of
the non-PCM stuff, too.