Ubuntu
alsa-utils package

  1. Bug #45246
  2. Comment #5

Comment 5 for bug 45246

Revision history for this message
Paul Sladen (sladen) wrote :

There's a utility called:

  speaker-test

do you get any results from running it? Could you alsa attach the output from:

  amixer info

Also, could you try running:

  alsamixer

and seeing if there are any "Jack Sense" channels where you can toggle the mute channel.

Finally, the ThinkPad has both hardware and software mixer channels (and mute toggles!). Is the hardware mixer un-muted (try pressing the Volume Up buttons severals times).