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WilliamG

macrumors G4
Original poster
Mar 29, 2008
10,045
3,955
Seattle
For some reason on my i7 iMac I've lost the ability to play audio from Mini Displayport devices like my MacBook Pro/PS3/360 etc when they're connected. It was working up till a few days ago. Regular sound from the iMac works great.

I did a fresh install on an external drive of SL 10.6.2, and audio then works fine over Displayport IN. So, clearly some files changed on 10.6.4/10.6.5, and I'm trying to find out what those files are.

Anyone able to help?

All help appreciated! I'd rather not have to reinstall my OS for this seemingly minor issue...!
 
Figured it out!

Go to your HD: Then Library/Preferences/Audio, and delete the .plist file in there. Reboot, and then your audio will work again, so for anyone else with this issue, that's how you fix it. :) The OS recreates that file when you reboot. I had two .plist files in there, and deleted both. One came back on reboot, and the other at some point while I was using audio. Not sure why the audio issue happens, but at least we can fix it!
 
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