Ubuntu
linux package

  1. Bug #1888992
  2. Comment #17

Comment 17 for bug 1888992

Revision history for this message
Francis Chin (chinf) wrote :

Thank you for following up.

I have managed to complete a commit bisect of the Ubuntu kernels and can confirm that the first bad commit is 851cc40f47677174527a1decbd1074feacd15a93:

ALSA: hda: call runtime_allow() for all hda controllers

    BugLink: https://bugs.launchpad.net/bugs/1876765

    [ Upstream commit 9a6418487b566503c772cb6e7d3d44e652b019b0 ]

Regarding #15: I have tested and can confirm that "options snd_hda_intel power_save_controller=0" is also a valid workaround.

Regarding #16: I have reverted the workarounds, booted the test kernel and can confirm that this also fixes my detection problem.