I've filed another bug about a similar case. Later I've found out that Amarok has something to do with this. Amarok works always, but it is the one that breaks the sound from other applications.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/417865 -- [regression] amarok (phonon) + alsa + gnome: audio stops working 'randomly' https://bugs.launchpad.net/bugs/394999 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