Ubuntu
alsa-ucm-conf package

  1. Bug #1872108
  2. Comment #8

Comment 8 for bug 1872108

Revision history for this message
Michele (mikelito) wrote :

Same issue here on X1 Yoga 4th gen. Seems alsa sees a bass speaker, but it's stuck at zero and cannot be turned on or otherwise regulated.

Node 0x17 [Pin Complex] wcaps 0x40058d: Stereo Amp-Out
  Control: name="Bass Speaker Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Pincap 0x0000001c: OUT HP Detect
  Pin Default 0x90170111: [Fixed] Speaker at Int N/A
    Conn = Analog, Color = Unknown
    DefAssociation = 0x1, Sequence = 0x1
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=00, enabled=0
  Power states: D0 D1 D2 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 3
     0x02* 0x03 0x06
  In-driver Connection: 1
     0x02

Full alsa info http://alsa-project.org/db/?f=aab3665eede4913070f67e7d8b1b57d17db2633c