HDMI audio issues with open core (i5 8250u, ALC256) on Asus X507UAR

[mhys33]

Remove Device ID and add the following Kernel Patch.

Arch: Any
Identifier: com.apple.driver.AppleIntelKBLGraphicsFramebuffer
Comment: 0x591b0000, 0105 instead of 0306, HDMI
Find: 02040A00000800008701000003060A
Replace: 01050A00000800008701000002040A
Enabled: Yes

Should we try this - I'll use fakePCIID.kext and intelHDMIinjector.kext, boot and take the PR files. Would that help somehow?

 

[EliteMacx86]

So this patch disables graphics acceleration for me, but still only internal audio, no HDMI audio. Attaching latest PR files.

Then your Laptop requires FakePCIID.

 

[EliteMacx86]

Should we try this - I'll use fakePCIID.kext and intelHDMIinjector.kext, boot and take the PR files. Would that help somehow?

Well, then in such a case, you don't need the Kernel patch.

 

[mhys33]

Then your Laptop requires FakePCIID.

Yes seems like. I think we've tried literally everything there was left to try but to no avail. I saw a dell laptop with similar specs use CodecCommander and get it working on Monterey. Do you have any knowledge of how to do that? I tried using that kext but apparently there's a specific way it needs to programmed for Alc256

 

[EliteMacx86]

Yes seems like. I think we've tried literally everything there was left to try but to no avail. I saw a dell laptop with similar specs use CodecCommander and get it working on Monterey. Do you have any knowledge of how to do that? I tried using that kext but apparently there's a specific way it needs to programmed for Alc256

CodecCommander is useful for built-in Audio.