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AppleHDA HDMI Audio [Guide]

Computer >DP2HDMI > Receiver > HDMI & Toslink > TV
The receiver should show in System Preferences not the TV with that configuration.
Are the speakers connected to the receiver? or TV?
Why optical to TV?
 
The receiver should show in System Preferences not the TV with that configuration.
Are the speakers connected to the receiver? or TV?
Why optical to TV?
The "Panasonic TV" is always shown in System Preference for me in Linux & Windows.
Speakers connected to the Receiver, Optical to TV because my TV do not support ARC(to get audio from analog television).

I have attached a new debugfile consisting of Ioregs & one screenshot.
This time I tried the following:
Passive DP2HDMI on another Receiver - No Audio
Active DP2HDMI on another Receiver - No Audio
Passive DP2HDMI direct to TV - No Audio
 

Attachments

  • debugtest.zip
    1.6 MB · Views: 58
Passive DP2HDMI on another Receiver - No Audio
Active DP2HDMI on another Receiver - No Audio
Passive DP2HDMI direct to TV - No Audio
direct to TV: IOReg shows TV does not support HDMI audio, not viable
Active/Passive ...: IOReg taken with receiver connected? or Disconnected?

Screen Shot 2019-01-26 at 6.49.04 PM.png
 
direct to TV: IOReg shows TV does not support HDMI audio, not viable
Active/Passive ...: IOReg taken with receiver connected? or Disconnected?

View attachment 382511
Direct to TV - Receiver OFF
HDMI Sound working on that port from other source.
 
HDMI audio not posible, agree?

Not the question asked. The question was:
All tests done with receiver connected and ON.
 
All tests done with receiver connected and ON.
Two issues:
1. When and why did the audio device change from Panasonic-TV/HDMI (Post #1000) to AV Receiver/DP (Post #1006)
2. Post #1007 IOReg shows macOS saw the HDMI codec and then it disappeared; result, no sound
 
Two issues:
1. When and why did the audio device change from Panasonic-TV/HDMI (Post #1000) to AV Receiver/DP (Post #1006)
2. Post #1007 IOReg shows macOS saw the HDMI codec and then it disappeared; result, no sound
Passive miniDP2HDMI = Panasonic-TV/HDMI
Active MiniDP2HI = AV Receiver/DP

Post #1007 I cannot say.

A new Ioreg when only external monitor is active & after some edits in ssdt - now Receiver show "PCM" on display but no audio:


'''
 

Attachments

  • afteralc3232fix.ioreg
    11 MB · Views: 105
  • ExternalMonitorOnly.ioreg
    11.1 MB · Views: 111
Last edited:
Attach ssdt
Both IORegs show same: display connected, HDMI audio working; display disconnected, HDMI audio disabled
Here you go
 

Attachments

  • SSDT-T440P.aml
    8.4 KB · Views: 98
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