Comment 59 for bug 994685

Hi Daniel, so Joe proposed the patches for Precise, but looking at the patch it is too intrusive for an stable release. And looking at the patch, seems it should have little effect, and current Precise kernel should at least output something through head phones.

Did you try to use something else besides using Sound settings test? (do other audio applications also fail to output sound in head phones when it's connected?). Also if you play with volumes using alsamixer -D hw, do you get any difference?