This sounds like a duplicate of 322374, could you please test if there is a startup sound? If there is a startup sound and after that system->preferences->sound lists no output devices, please mark this as duplicate of that bug.
This sounds like a duplicate of 322374, could you please test if there is a startup sound? If there is a startup sound and after that system- >preferences- >sound lists no output devices, please mark this as duplicate of that bug.