The issue is that audio over hdmi works however audio over the audio jack has been either non functional or iffy. I met with Wei last night and mentioned that it needs to be looked into again.
Would be worth testing with a trunk tilt kernel, and if still broken, get Andy to look at it?
There's still audio mixer mismatch in Panda UCM configs for 11.12. Liam provide new configs, and if it works, it will be patched to 12.01 release.