Indeed, sometimes pulseaudio do not start at login (although it is set up as one of the startup applications). If I run pulseaudio I can open the sound preferences, but I cannot change the volume since the only visible output is "Dummy output".
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-media in Ubuntu. https://bugs.launchpad.net/bugs/773232 Title: gnome-volume-control freezes with "Waiting for sound system to respond" -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs