Ubuntu
pulseaudio package

  1. Bug #574137
  2. Comment #10

Comment 10 for bug 574137

Revision history for this message
jim_charlton (charltn) wrote :

Just another small observation. I can trigger the sound distortion by playing a system sound (hit the back arrow a few times rapidly at the prompt in a gnome-terminal window). The sound distortion will persist with any new sound apps trying to produce sounds UNTIL all sound apps cease for 5 seconds and one sees in the /var/log/syslog the lines.

May 4 18:09:35 jim-nb kernel: [ 9635.626236] ALSA hda_codec.c:1176: hda_codec_cleanup_stream: NID=0x2
May 4 18:09:35 jim-nb kernel: [ 9635.626260] ALSA hda_codec.c:1176: hda_codec_cleanup_stream: NID=0x3
May 4 18:09:35 jim-nb kernel: [ 9635.626346] ALSA hda_codec.c:1176: hda_codec_cleanup_stream: NID=0x2
May 4 18:09:35 jim-nb kernel: [ 9635.626362] ALSA hda_codec.c:1176: hda_codec_cleanup_stream: NID=0x3

or similar... as outlined in the message above. After these "codec_cleanup" lines appear, the sound returns to normal and may be good for some time. Note that these "codec_cleanup" lines appear in the log only 5 seconds after all sound apps cease producing sound. Any help?