I just upgraded my 2nd Gen Macbook from Gutsy to Hardy and had the same issue (sound from the internal speakers, but none from the headphone jack).
The workaround recommended here (unmute the surround sound) worked great, though. Thanks for posting the solution, Polera!
I just upgraded my 2nd Gen Macbook from Gutsy to Hardy and had the same issue (sound from the internal speakers, but none from the headphone jack).
The workaround recommended here (unmute the surround sound) worked great, though. Thanks for posting the solution, Polera!