http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output.conf.common
element pcm only exist in analog-output.conf.common but switch = mute try change mute to on
[Element PCM] switch = mute volume = merge override-map.1 = all override-map.2 = all-left,all-right
http:// cgit.freedeskto p.org/pulseaudi o/pulseaudio/ tree/src/ modules/ alsa/mixer/ paths/analog- output. conf.common
element pcm only exist in analog- output. conf.common
but switch = mute
try change mute to on
[Element PCM]
switch = mute
volume = merge
override-map.1 = all
override-map.2 = all-left,all-right