[Guide] Intel IGPU HDMI/DP audio (all Sandy Bridge -> Kaby Lake [and likely later])

[hazimoss]

Framebuffer patching has nothing to do with layout-id.
You always inject the layout-id you want AppleALC to use, except for the case you inject alc-layout-id and layout-id instead.

So I should specify alc-layout-id under PciRoot(0)/Pci(0x1b,0) and PciRoot(0)/Pci(0x03,0) ?

 

[RehabMan]

So I should specify alc-layout-id under PciRoot(0)/Pci(0x1b,0) and PciRoot(0)/Pci(0x03,0) ?

Just layout-id necessary for HDAU (3,0).
alc-layout-id is specific to HDEF (1b,0)

You can simply inject only layout-id on both and then AppleALC will translate/inject alc-layout-id as needed.

 

[hazimoss]

I can't seem to get it working. Here is the problem reporting attatched.
Thanks for your help

 

[RehabMan]

I can't seem to get it working. Here is the problem reporting attatched.
Thanks for your help

To use FakePCIID for 0x0c0c->0x0a0c spoofing, you must inject no-controller-patch on HDAU.
Like this:

Note: Must use current AppleALC.kext as the version you have installed does not support no-controller-patch.

 

[hazimoss]

To use FakePCIID for 0x0c0c->0x0a0c spoofing, you must inject no-controller-patch on HDAU.
Like this:
View attachment 364632

Note: Must use current AppleALC.kext as the version you have installed does not support no-controller-patch.

Thank you very much Rehabman you are the best. It worked

 

[leo23fla]

Hey rehab, Can you help me figure out what's wrong with my setup? I have 2 externals connectors in my laptop, VGA and HDMI, VGA is working fine. HDMI and internal is kinda of weird. Without HDMI connected, I have internal working fine, with audio and acceleration. When I connect the HDMI cable my internal displays a black screen and HDMI works fine, audio included. I can also change the audio source to my laptop speakers fine too. Windows and linux is working fine. Thank you!.

Edit: For some reason if I close my laptop lid and open even 1s after, both work fine.

 

[RehabMan]

Hey rehab, Can you help me figure out what's wrong with my setup? I have 2 externals connectors in my laptop, VGA and HDMI, VGA is working fine. HDMI and internal is kinda of weird. Without HDMI connected, I have internal working fine, with audio and acceleration. When I connect the HDMI cable my internal displays a black screen and HDMI works fine, audio included. I can also change the audio source to my laptop speakers fine too. Windows and linux is working fine. Thank you!.

Edit: For some reason if I close my laptop lid and open even 1s after, both work fine.

Try without con1-pipe patch.

Also, read here re EDID patching:
https://www.tonymacx86.com/threads/readme-common-problems-in-10-13-high-sierra.233582/

 

[Flemidra]

Hey can i get some help? I tried everything on this guide and everytime i add the PCIRoot line for HDEF in my config.plist i lose my audio. So just go be more clear, before i modify my config.plist and add the PciRoot(0x0)/Pci(0x1f,0x3), i have my audio working (internal speaker, built in microphone, headphone audio but no headphone mic), but when i modify the plist and add the pciroot i lose all audio in my computer (grey icon, and no Audio device detected).
PS: I already know where is my HDMI, its framebuffer 1, but without the audio i cant really tell if my hdmi screen has audio from my computer.
I dont know if i mess up something while i was patching my DSDT ( i applied the patch "Rename B0D3 to HDAU" ).
I attach two ioreg, one before using the HDMI cable and one after (to see the change in the framebuffer).

Oh and i know i have to install a few kext to S/L/E. I will be doing that tomorrow when i get a new HDD in order to create a backup of my system before something goes wrong and i lose everything if a kext gets corrupted when i try to install it like it happen last time using Kext Wizard

 

[RehabMan]

Hey can i get some help? I tried everything on this guide and everytime i add the PCIRoot line for HDEF in my config.plist i lose my audio

You would need to attach PR files from both scenarios.

 

[Flemidra]

You would need to attach PR files from both scenarios.

Ok. Thank you so much for your help. If i need to upload something else please let me know.