When I connect my bluetooth speaker to my pc sometimes the connection goes wrong. I hear the beeb on my speaker telling me it's connected but when i try to play audio nothing happens. When I look in the sound settings all my output (and input) devices are gone, even the built in speaker of my laptop.
Sometimes the speaker connects no problem. But when this happens I have to reboot the computer to get any audio or media playing.
I have tried
killall pulseaudio and in
alsamixer the volume levels are normal.
I use ubuntu 12.04 on a samsung series 9 (np900X3a)