Ubuntu
pulseaudio package

  1. Bug #1044150
  2. Comment #2

Comment 2 for bug 1044150

Revision history for this message
Raymond (superquad-vortex2) wrote : Re: no 5.1 surround sound

you need to switch channel mode from 2ch to 6ch and restore this setting by alsactl before pulseaudio start

Simple mixer control 'Channel Mode',0
  Capabilities: enum
  Items: '2ch' '4ch' '6ch'
  Item0: '2ch