Upgraded to 10.7.3 using SW Update.
I am using an ASUS 23inch HDMI LCD display with built in speakers . Did Toledo's HDMI Audio edits when at 10.7.2 in Dec. 2011 and had success with the hack. HDMI audio worked for 2 months no problems.
Install seemed to go fine. But on automatic reboot got Light Blue blank screen, no GUI. Attempted to reboot with 'Graphics Mode"="1280x1024" same result. Swapped out HDMI cable and connected using DVI cable. GUI returned in 1980x1080 mode.
Missed a bullet there, breathed a sign of relief.
Installed my saved copy of hacked AppleHDA.kext using Kext Utilitiy. Rebooted. Tested HDMI Video seemed to work. Disconnected DVI and rebooted with HDMI Video only. GUI back up and running.
Went to System Preferences. No HDMI Audio output device in selections for ASUS display as was there when on 10.7.2.
Checked IOReg state compared with a copy saved under 10.7.2. Seems to be the same.
Installed my saved off copy of AppleIntelSNBGraphics.kext from 10.7.2 working version.
Still no HDMI Audio selects in System Preferences - Audio.
Went through all of the DSDT edits for HDMI Audio on HD-3000 Integrated Graphics support
with parts 2.b and 3c they all appear to be there.
What did I miss?
EDIT:EDIT EDIT:
I found that the latest AppleHDA.kext driver works. Fixes Audio on 10.7.3 !
http://www.tonymacx86.com/viewtopic.php?f=16&t=45413[/quote]
Now I have
Thanks Toledo !!
Not sure why the install of my previous working AppleHDA.kext didn't bring me back to the same place, but I'm glad to be back with HDMI Audio on HD-3000 Integrated Graphics.