Ubuntu
alsa-driver package

  1. Bug #1487168
  2. Comment #39

Comment 39 for bug 1487168

Revision history for this message
Raymond (superquad-vortex2) wrote : Re: [Emulated AD1980 AC97 inside Virualbox 5.0, playback] volume slider problem

you need virtualbox verbose log which provide debug messages printed by LogFlowFunc()

the linux driver check those ad specific registers for multi codecs , and ADI compatiable mode

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/sound/pci/ac97/ac97_patch.c