I would guess this should be assigned to 'gnome-sound-properties', as changing settings there seems to have fixed the issue. As per Niels comment above, changing the mixer settings to "ALSA" caused the sound to work properly again.
** Changed in: gnome-control-center (Ubuntu) Sourcepackagename: linux => gnome-control-center -- [intrepid alpha1] sound regression / no media playback on MacBook (second gen) https://bugs.launchpad.net/bugs/244937 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs