I think after a few investigations that the Esound server is implied in this bug, because amarok and totem works great.
** Changed in: gnome-alsamixer (Ubuntu) Sourcepackagename: gnome-alsamixer => esound -- No system sounds on Gnome https://launchpad.net/bugs/52945 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
