You have to find out your onboard audio still work with jack detection and analog back at which version of alsa driver/kernel by boot from live cd
in theory, you lost the automute feature when jack detection of hp is not functioning but the aggressive power saving use jack detection to power down the widgets in unused path this may mean analog loopback only function when some appplication open both playback and capture stream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1540372 Title: [Intel DP35DP, SigmaTel STAC9271D, Green Speaker, Rear] Underruns, dropouts or crackling sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1540372/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
