Ubuntu
alsa-driver package

  1. Bug #893210
  2. Comment #42

Comment 42 for bug 893210

Revision history for this message
Raymond (superquad-vortex2) wrote :

http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output-headphones.conf

it is because headphone port mute master mono

[Element Master Mono]
switch = off
volume = off

as only snd-hda-intel implement jack detection kctl

those snd-intel8x0 does not have any jack detection kctl