Comment 6 for bug 484006

Hmm; I suspect it has something to do with pulseaudio, but it's just a guess, and a couple of quick Google searches were fruitless. I don't have much time left tonight to do more research, so I suggest you poke around and see if there are any bluetooth services running at all, and if pulseaudio has any bluetooth modules loaded; something like "pactl list | grep blue" should do the trick. Also, check what's using your sound card with (sudo, if you want to see root processes) "lsof /dev/snd/*". Sorry I can't be more helpful at the moment; I'll try and return to this at the weekend or next week some time.