No audio output over minidisplay port/hdmi since upgrading to 10.6.4
I use a Griffin "video display convertor" (as recommended by Apple's support article for ext displays) to output 1080p with audio over hdmi via mini displayport on my 27" iMac (core2Duo model). While I sometimes had to manually tell OSX to use the mdp output as the audio output instead of the speakers despite my chosen app being set to use mdp regardless, it worked fine.
However since upgrading from 10.6.3 to 10.6.4, I have lost the ability to change audio. In system preferences, only the internal speakers are given as an option. In other words, 10.6.4 seems to have broken my audio out by removing the choice. If this were another mac I could be forgiven for thinking audio out wasn't supported over mdp, but I know better then this.
No other system changes have been made that could account for this. I'm using the same cables and tv. I've reconnected everything, rebooted and also power cycled the tv, all to no effect
Message was edited by: Dandy_Sephy
However since upgrading from 10.6.3 to 10.6.4, I have lost the ability to change audio. In system preferences, only the internal speakers are given as an option. In other words, 10.6.4 seems to have broken my audio out by removing the choice. If this were another mac I could be forgiven for thinking audio out wasn't supported over mdp, but I know better then this.
No other system changes have been made that could account for this. I'm using the same cables and tv. I've reconnected everything, rebooted and also power cycled the tv, all to no effect
Message was edited by: Dandy_Sephy
iMac 27", Mac OS X (10.6.4)
