2010/5/27 Clemens Ladisch clemens@ladisch.de
Colin Guthrie wrote:
state.Intel { control.1 { comment.access 'read write' comment.type INTEGER comment.count 2 comment.range '0 - 31' comment.dbmin -4650 comment.dbmax 0 iface MIXER name 'Master Playback Volume' value.0 30 value.1 30 }
This is the hardware volume control.
control.11 { comment.access 'read write user' comment.type INTEGER comment.count 2 comment.range '0 - 255' comment.tlv '0000000100000008ffffec1400000014' comment.dbmin -5100 comment.dbmax 0 iface MIXER name 'PCM Playback Volume' value.0 253 value.1 253 }This is the emulated software volume control that is created by the softvol plugin. This control gets recreated by "alsactl restore" even when the plugin is not running.
Might it be possible that PA is trying to use this, but that it doesn't have any effect because PA is using PCM device hw:0? (Try unloading snd-hda-intel and then deleting that entry from /etc/asound.state.)
Regards, Clemens
if I make a customised device "test" with softvol plugin with name "P Playback Volume" in .asounrd
aplay -D test.wav
alsamixer -c0 show the "P" control and volume change as expected
Then change the name from "P Playback Volume" to "Q Playack Volume" and play audio through device "test" again
alsamixer -c0 show both "P" and "Q" controls
"P" control can go up/down with no effect of course
but "Q" stayed at 100%
Is this a bug ?