toleda
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Lion HDMI Audio
Part 2a: Lion HDMI Audio DSDT Edits/Discrete Graphics - AMD/Nvidia
The DSDT edits are mandatory for HDMI Audio on your Lion system. Editing a DSDT is not as scary as it looks, however, it must be done exactly as described.
What you will need:
1. IORegistryExplorer - available with Xcode for Lion download from the Mac App Store/Developer Tools/Xcode
2. DSDTSE v1.4.3 - http://www.osx86.es/?p=610
3. dsdt-hdmi_audio-v3.dsl: View attachment DSDT-HDMI_Audio_Edits_v3.dsl
Example edited dsdts with working HDMI audio in Lion are available below:
1. GA-H55N-USB3-F5/HD 5870/10.7.1: View attachment GA-H55N-USB3-F4-HDMI.aml
2. GA-H67N-USB3-F7/HDMI/10.7.2-.3 - PEG0 renamed to PEGP, Audio ID:889: View attachment DSDT-GA-H67N-USB3-B3-F7-EHCI-HDMI-889.aml
3. AS-P8H67I-Deluxe-0606/HDMI/10.7.2-.3 P0P1 renamed to PEGP, Audio ID: 892: View attachment DSDT-AS-P8H67I-Deluxe-B3-0606-HDMI-892.aml
Now, is a good time to back up your system. Preferably, you have a bootable backup. Time Machine is not a good choice for the primary backup. The amount of time needed to enable HDMI audio varies from an hour to as long as you are interested.
This guide applies to Mac OS X 10.7.x only.
Credit: VCH888: http://www.insanelymac.com/forum/in..."]Lion HDMI Audio - Part 3a: Kext Edits - AMD
If you have an Nvidia GT/S/X 4xx/5xx, Lion HDMI Audio - Part 3b: Kext Edits - Nvidia
6. Working HDMI Audio
HDMI audio is available out of the box for the following graphics card with the above DSDT edits.
a. Sapphire Vapor X HD 5770 1GB
b. Sapphire Vapor X HD 5870 1GB
c. Sapphire Vapor X HD 6850 1GB
d. Sapphire Vapor X HD 6870 1GB
e. EVGA GT 430 1GB
For all other graphics cards, more work is required.
If one of the graphics cards above is installed and the DSDT is edited properly, working HDMI Audio (HDAU) looks like this:
HD6870/10.7.1
GTX 570/10.7.1
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