got the same problem and fixed it as descriped here... could it be due to some proprietary drivers being used? I use the realtek sounddriver and before alsa and et-sound where started AFTER gdm, though you hear a sound "in" gdm...
-- Cannot run gdmsetup https://launchpad.net/bugs/66034 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
