Ubuntu
alsa-driver package

  1. Bug #1264096
  2. Comment #13

Comment 13 for bug 1264096

Revision history for this message
trendzetter (trendzetter) wrote :

I can work around the issue by closing the laptop so it hibernates. When I reopen the computer it suddenly plays sound.
I have noticed this line in dmesg after the sound became available after restarting from hibernation:
[ 7010.272800] Haswell HDMI audio: Power for pin 0x6 is now D0