no sound 27" cinema display after upgrade to Mavericks
no sound on 27" cinema display after upgrade to Mavericks
LED Cinema Display (27-inch), OS X Mavericks (10.9.1)
no sound on 27" cinema display after upgrade to Mavericks
LED Cinema Display (27-inch), OS X Mavericks (10.9.1)
Which Mac Pro model year and number? 3,1 - 4,1 - 5,1 would help to know which graphic card also.
Someone posted a nice $80 adapter that does get around some of the problems with audio on some configurations.
Active MDP to HDMI audio and video converter:
I just encountered this problem and managed to solve it. When I opened System Preferences -> Sound, I saw three listings under Output:
Internal Speakers
LED Cinema Display
Display Audio
LED Cinema Display was already highlighted. I found that by highlighting Display Audio instead, I could get my sound to work normally again. It seems that Mavericks calls the USB audio connection "Display Audio." With any other company, this would classify is a major customer-facing bug--but, since it's Apple, I'm sure we are supposed to see it as a feature. Anyway, I hope that helps.
no sound 27" cinema display after upgrade to Mavericks