Same problem here, with an HDA nVidia card (snd_hda_intel) To me, the problem first occours when I modify the volume via the panel applet.
Also, I noticed that the pitch noise seems variate in strength at dfferent volume values. Tried linux-backports-modules-alsa-2.6.31-15.50 but same problem. I'll try to boot in 2.6.31-14 and see if problem occours -- Highpitched Rattling like Sound with 5.1 Surround Configuration on Karmic Koala https://bugs.launchpad.net/bugs/445849 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
