The solution to this problem was this: http://ubuntuforums.org/archive/index.php/t-931607.html
Basically the login sound prevented pulseaudio to start correctly at login. To fix this go to: System >> admin >> login window >> accessibility and toggle off the "login successfull" sound But now i don't have any login sound, and i cannot set it in the sound preferences.. -- Various programs fail to start with Assertion 's' failed at pulse/stream.c:971, function pa_stream_drain(). Aborting. https://bugs.launchpad.net/bugs/274577 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs