- Joined
- Apr 28, 2011
- Messages
- 909
- Motherboard
- Asus Prime Z690M-Plus D4
- CPU
- i7-12700KF
- Graphics
- RX 6600
- Mac
- Mobile Phone
Hi everybody. Need a little help, here.
I've noticed a strange behavior about Intel® UHD Graphics 630 iGPU HDMI audio.
Here's the scenario:
Everything works as expected but...
Audio HDMI works only if I unplug then plug back the DisplayPort cable. In IOReg/HDEF AppleHDAHDMI_DPDriver shows up only after unplug and re-plug back the video cable (and obviously HDMI audio in sound outputs).
Both onboard HDMI 1.4b port and DisplayPort 1.4 have the same issue, so I guess it's not hardware related. Likely I'm missing something here.
Here's what I have before I touch anything
And here's what happens when I unplug and plug the DP cable (or HDMI) back
Any clues?
Attachments:
I've noticed a strange behavior about Intel® UHD Graphics 630 iGPU HDMI audio.
Here's the scenario:
- macOS Big Sur 11.2.1
- Asus Prime Z490-P
- Intel i9 10900K
- iGPU enabled and working through AppleCinemaDisplay (DisplayPort connection)
- iMac20,2 (waiting for an MSI RX 5700XT which has not arrived yet)
- opencore 0.6.6 (Debug version files attached down here)
Everything works as expected but...
Audio HDMI works only if I unplug then plug back the DisplayPort cable. In IOReg/HDEF AppleHDAHDMI_DPDriver shows up only after unplug and re-plug back the video cable (and obviously HDMI audio in sound outputs).
Both onboard HDMI 1.4b port and DisplayPort 1.4 have the same issue, so I guess it's not hardware related. Likely I'm missing something here.
Here's what I have before I touch anything
And here's what happens when I unplug and plug the DP cable (or HDMI) back
Any clues?
Attachments:
- EFI folder
- IOReg (version 2.1 for 10.6.3) with AppleHDAHDMI_DPDriver not loaded (before unplug/plug DisplayPort)
- IOReg with AppleHDAHDMI_DPDriver loaded (after unplug/plug DisplayPort)
- BIOS 1602 settings
Attachments
Last edited: