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AppleHDA HDMI Audio [Guide]

Joined
Jan 1, 2017
Messages
82
1. I did a clean install of Mojave and DisplayPort audio was working originally but then stopped. Now only Headphones and Airplay shows up in audio output.
2. NUC6i5SYH
3. Used Rehabman guide for NUC with a clean install (not upgrade to High Sierra)
4-9. Attached

Thanks for the help.
 

Attachments

Joined
Feb 2, 2019
Messages
6
Motherboard
Gigabyte H370N Wifi
CPU
i3-8100
Graphics
HD Graphics
Mac
Mac mini
Yes, the tool has no way to know what physical connector is.
Connect the display to each connector and make an IOReg.
Reply with 3 IORegs.
This is what I found. There are 3 ports: a HDMI 2.0, a HDMI 1.4 and a DP. For both HDMI 2.0 and DP, I got screen shots of IOReg and Hackintool attached. For HDMI 1.4, once it is in use, the system's boot up process hangs; I cannot even get it boot into safe mode. Looks like Port 5, 6, and 7 are HDMI 1.4, HDMI 2.0 and DP, respectively, right? What to do next? Thank you.
 

toleda

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Joined
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Messages
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Asus Maximus VII Impact
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Core i7-4770K
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I got screen shots of IOReg and Hackintool attached.
Nothing attached.
There is nothing more useless for problem solving than a screenshot of IOReg.
Post #1117, "Reply with 3 IORegs." Try again.
 
Joined
Feb 2, 2019
Messages
6
Motherboard
Gigabyte H370N Wifi
CPU
i3-8100
Graphics
HD Graphics
Mac
Mac mini
Nothing attached.
There is nothing more useless for problem solving than a screenshot of IOReg.
Post #1117, "Reply with 3 IORegs." Try again.
My bad. Wiil upload those files soon.
 

toleda

Moderator
Joined
May 20, 2010
Messages
24,458
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS
DisplayPort audio was working originally but then stopped
No Intel HDMI audio codec present:
Code:
ioreg -rxn IOHDACodecDevice | grep VendorID
 |   "IOHDACodecVendorID" = 0x10ec0283
Verify BIOS/.../Display audio/Enabled
Run Terminal command above
If no, 0x8086...., hardware problem
 
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