[MPlayer-users] volume keys broken: [AO_ALSA] Error setting left channel

Vitezslav Kotrla vitko at post.cz
Sat Nov 17 00:37:06 CET 2007


Dominik 'Rathann' Mierzejewski píše v Pá 16. 11. 2007 v 22:31 +0100:

> My guess is that there's no 'PCM' control in your mixer or it is not a
> slider, but a switch. Find which one controls the volume and pass its name
> to -mixer-channel.

I see, thanks for tip! Does following

$ amixer
...
Simple mixer control 'PCM',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 100
  Front Left: Capture 86 [86%] [-5.60dB]
  Front Right: Capture 86 [86%] [-5.60dB]
Simple mixer control 'PCM Center',0
  Capabilities: pvolume pvolume-joined
  Playback channels: Mono
  Limits: Playback 0 - 100
  Mono: Playback 0 [0%] [-99999.99dB]
...

make any sense to anyone?

(Well, 'man amixer' doesn't reveal meanings of 'cvolume' nor 'pvolume'.
Sigh.)

Vit




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