1 Reply Latest reply: Sep 6, 2010 8:44 AM by Scott Billings
Ewan Laing Level 1 Level 1 (10 points)
Over the past few days my mac's sound has been cutting out when watching videos through quicktime. It will start the video and play it but with no sound when i press the mute or volume buttons it seems as though they have been disabled as it shows up on the screen with a sort of stop sign. When listening to music on iTunes it is playing fine so i know that the speakers are fine. The videos will also stop and start as if it is buffering but it can't be because i have downloaded the video already!

Anyone got any good ideas???

MacBook, Mac OS X (10.5.8)
  • Scott Billings Level 4 Level 4 (1,655 points)
    Sounds like for some reason it's trying to change to digital output mode. Next time it happens, look at the headphone jack. If you see a red light, it's in digital output mode. This happens from time to time, and you basically just try and put in a pair of headphones or speakers a couple of times until it turns off. If you can't get it to switch back after a dozen or so tries, you should probably take it to an AASP or Apple store, because you're going to need a new logic board.