Ubuntu
alsa-driver package

  1. Bug #572146
  2. Comment #18

Comment 18 for bug 572146

Revision history for this message
David Henningsson (diwic) wrote : Re: crackling sound from microphone with 2.6.32-21 kernel

Thanks!
I think this could be position_fix and/or enable_msi related. Since you've tried position_fix=1 already (according to #3), could you instead try to add the following to /etc/modprobe.d/alsa-base.conf:

options snd-hda-intel enable_msi=1

and reboot, see if it helps, then

options snd-hda-intel enable_msi=0

and reboot and see if it helps?