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AppleHDA HDMI Audio [Guide]

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ssdt is working, see Post #1/Notes/Nvidia
Hi Toleda,
Many thanks for your great help !
HDMI audio is working now for me
(needed to install VoodooHDA-2.8.8 to get HDMI devices in system preferences/sound)
 
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Executed audio_cloverHDMI-130_v0.6.command, didn't work. Output attached.

Build:
  • Asus H97I-PLUS
  • Intel i5 4690K
  • EVGA GTX 1080 SC
  • Screen: Roku TCL 4k 55"
  • Followed the guide for normal AppleHDA audio before executing HDMI audio
Note on weird work around: boot with HDMI cable connected to the iGPU, doesn't work. Without shutting down the PC or anything, unplug iGPU, plug into nVidia: audio works.
 

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Last edited:

toleda

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Output attached.
See Post #1/IV. Problem Reporting; attach all requested files
Without shutting down the PC or anything, unplug iGPU, plug into nVidia: audio works.
Exact nature of the problem. Driver does not detect HDMI audio device on boot and does detect HDMI audio device on hot plug. Clearly, a macOS/Nvidia/Pascal bug.
 
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AppleHDA uses HDEF
Asus Prime Z270K uses HDAS.
Install ssdt_hdef-1-100-hdas.zip, restart
Run cloverHDMI, restart
Reply with new files
Did the above procedure, now it detects my monitor but yet no sound, plus everything that has audio included won't play as opposed as simply doesn't output sound: Youtube videos would not start etc. Here's the files. Thank you a lot, Toleda!

PS: MacIASL still doesn't even open its main window but I was able to export the needed file anyway.
 

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Joined
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Messages
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Motherboard
Asus H97I-PLUS
CPU
i5 4690K Haswell
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nVidia GTX 1080
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MacBook Pro
Mobile Phone
iOS
See Post #1/IV. Problem Reporting; attach all requested files

Exact nature of the problem. Driver does not detect HDMI audio device on boot and does detect HDMI audio device on hot plug. Clearly, a macOS/Nvidia/Pascal bug.
  1. Description of HDMI audio problem
    • After following the guide, no audio from nVidia HDMI or Intel HDMI ports. Workaround is to boot with the cable connected to the Intel HDMI port and change to the nVidia HDMI port.
  2. OS X version/motherboard model/BIOS version/processor/graphics
    • macOS 10.13.2/H97I-PLUS/2704 (latest)/Intel i5 4690K/EVGA nVidia GTX 1080 SC
  3. Procedure/Guide used
    • Executed audio_cloverHDMI-130_v0.6.command
  4. Installed S/L/E/AppleHDA.kext (10.11 and newer, search: show hidden files)
    • Attached
  5. Copy of IOReg
  6. IOReg_v2.1/File/Save a Copy As…, verify file (IV. Tools 2.)
    • Attached (used version 3.0.2)
  7. Screenshots
    1. DPCIManager/Status (IV. Tools 3.)
      • Attached
    2. System Information/Hardware/Graphics/Displays
      • Attached
    3. System Preferences/Sound/Output
      • Attached (screenshot after workaround, output 55S405 is gone without it)
  8. DPCIManager/Misc/Boot Log
    • Attached
  9. MaciASL/File/Export Tableset As... (IV. Tools 4.)
    • Attached
  10. Terminal/Shell/File/Export Text As. . . /audio_cloverHDMI-1x0.command
    • Attached
  11. Clover (if installed)
    1. EFI/CLOVER/config.plist
      • Attached
    2. DPCIManager/Misc/Boot Log
      • Attached
    3. EFI/CLOVER/ACPI/Patched/dsdt.aml (if installed)
      • Not installed
    4. EFI/CLOVER/ACPI/Patched/ssdt.aml
      • Not installed

My understanding is, if this is a bug I have to live with it until they decide to fix it, correct? Also, I haven't tried with a different cable to discard that's the issue, but audio works correctly from my windows partition.
 

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toleda

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Joined
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Are you saying macOS/Nvidia HDMI audio should work because Windows/macOS/Nvidia HDMI audio works?
I'm saying we can discard a defective cable/port/etc. if the same hardware is working with different software

EDIT: Is there a software command to fake the hotplug or the like? Is really annoying having to disconnect and connect
 
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