dep via tde-users wrote:
pulseaudio -v renders this:
this assumes that pulseaudio was stopped before this, but you can not stop
it, because it restarts automatically. To add debuggin you need to change
the config.
Use
$ pactl list
to see what plugins you have configured.
Although you can see this in kmix as well
Time ago it was necessary to just unmute the channels.
If you want to debug lower level, check amixer
$ amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 65536
Mono:
Front Left: Playback 19660 [30%] [on]
Front Right: Playback 19660 [30%] [on]
Simple mixer control 'Capture',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined
Capture channels: Mono
Limits: Capture 0 - 65536
Mono: Capture 65536 [100%] [on]
or
# dmesg | grep sound
[ 11.462602] input: HDA Digital PCBeep
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[ 11.462657] input: HDA Intel PCH Mic
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 11.463067] input: HDA Intel PCH Line
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 11.463122] input: HDA Intel PCH Line Out
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[ 11.463200] input: HDA Intel PCH Front Headphone
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[ 11.463262] input: HDA Intel PCH HDMI/DP,pcm=3
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[ 11.463338] input: HDA Intel PCH HDMI/DP,pcm=7
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15
[ 11.463409] input: HDA Intel PCH HDMI/DP,pcm=8
as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16