Comment 95 for bug 445849

Revision history for this message
Colin Kelly (colinrk) wrote : Re: Highpitched Rattling like Sound with 5.1 Surround Configuration on Karmic Koala

I reported this bug in October but mine got merged with this bug. I had initialy said it was the gnome volume control and not pulseaudio.

The fact that the noise was tied to the precise position on the volume slider, and the fact that the slider goes all the way to 150%(!) (reminds me of spinal tap, lol) led me to think that the bug was in the volume control.

Since then I got a new motherboard and fresh install w/Karmic:
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller

I think it was an ICH9 before. Same problem. FYI I also had to comment out:
"options snd-hda-intel power_save=10 power_save_controller=N" in alsa-base.conf to stop the popping noise.