Hi
When I try to change the PCM volume using alsamixer, nothing happens. It
just plays at the same volume. Mute does work though. The Master volume
also does work as expected. Is this a limitation of some cheap on-board
chipsets, wrong driver loaded, missing feature to be added some time,
something else?
"amixer info" says this for the SI7012 :
Card default 'card0'/'SiS SI7012 at 0xdc00, irq 10'
Mixer name : '0x434d4941 CMI'
Components : 'AC97'
Controls : 29
Simple ctrls : 18
and this for the SI7018
Card default 'SI7018'/'SiS SI7018 PCI Audio at 0xc400, irq 11'
Mixer name : 'C-Media Electronics CMI9738'
Components : 'AC97a'
Controls : 161
Simple ctrls : 147
Strangely (well, it does seem to have a different mixer...), another
machine with a SI7012 has a working PCM volume control. But this one
has to be talked to at 48 Khz, while the other work at 44.1 Khz also.
"amixer info" says this about the card :
Card default 'card0'/'SiS SI7012 at 0xd800, irq 11'
Mixer name : 'SigmaTel STAC9721/23'
Components : 'AC97'
Controls : 30
Simple ctrls : 20
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