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The dsdt patch file is not for the UEFI dsdts. It is for the Award BIOS. There may be something useful in the patch file for the AMI UEFI but I don't know. If you are up for an experiment. Read on. Otherwise, reply with not interested.
Download the attachment.
Some notes
1. You cannot use the patch file more than once on a dsdt. If problems, start over with recovery file.
2. The HDMI audio dsdt edits are for AMI UEFI Sandy Bridge only (GA and Asus)
3. You must use the MultiBeast/With DSDT/ALC 8__/AppleHDA_v2.2.0 (10.7.4)
4. Installs both integrated and discrete graphics HDMI audio; you can use one or the other or both.
Use your native dsdt. Fix any errors you want.
Run DSDT Editor/Patch/Open ami_clean_compile.txt, Apply, Compile and Save.
Hopefully there are no errors.
The saved file is your recovery dsdt.
If you want HD3000 HDMI audio set layout-id to 0x85, 0x01, 0x00, 0x00
If you want Nvidia HDMI audio set layout-id to 0x79, 0x03, 0x00, 0x00
if you want both, use HD3000 HDMI audio layout-id
TextEdit Open/Downloads/hd3000_hdmi_audio_dsdt_editing_kit/hdmi_audio_ami_sandy_bridge.txt
Edit HDEF/layout-id to the above.
Save
Run DSDT Editor/Patch/Open hdmi_audio_ami_sandy_bridge.txt, Apply, Compile and Save.
Hopefully there are no errors.
Save
Install dsdt.aml to Extra/dsdt.aml
Restart. Verify HDMI dsdt edits in IOReg.
More Info: Downloads/hd3000_hdmi_audio_dsdt_editing_kit/-read_me_first-hd3000_hdmi_audio.pdf
View attachment 28978
Hi toleda, I ran this exact process above on my DSDT extract. I didn't get any errors. I have an 889 and an AMD card, so I am using 0x85, 0x01, 0x00, 0x00. I rebooted and still cannot find HDAU in IOReg. Can you take a look at my files when you have a chance? Thanks!