Comment 91 for bug 337314

I get a noticeable amount of oscillating noise from the headphones now, using the patch against ALSA 1.0.19, and following the instructions on the wiki for using PulseAudio with 6 channel sound. The oscillating noise goes away when I mute the HP channel. However, when I mute it, I can hear a steady tone. If I slide the volume sliders up and down for the HP channel, the pitch will change (randomly, not directly or inversely).

Additionally, the internal mic does not seem to work for me. Whenever I open Volume Control and go to the recording tab, the channel is always shown with a muted mic button. I unmute it and try to record with GNOME Sound Recorder, but it doesn't record anything.