[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

[rondark]

the pic

 

[CaseySJ]

the pic

We can see that “DisableIoMapper” is checked on. It should be checked off. Also, VT-d in BIOS needs to be enabled. Then AppleVTD will be active after a reboot.

We may also need to look at ACPI -> Add and ACPI -> Delete. But we can do this afterwards.

 

[rondark]

I checked off “DisableIoMapper”
Now neither ethernet nor wifi works
I am communicating through Thunderbolt adapter
Experiment:
But...ethernet 2 connects

 

[CaseySJ]

I checked off “DisableIoMapper”
Now neither ethernet nor wifi works
I am communicating through Thunderbolt adapter
Experiment:
But...ethernet 2 connects

If you're using the new OpenCore.efi and OpenCore Configurator, then the kernel quirk FixAppleVTD will be erased by OpenCore Configurator because this is a new kernel quirk that the GUI does not recognize. So we have to manually enter that quirk again.

 

[rondark]

The same one I entered this morning in text editor?

It was gone.
I entered it again

 

[rondark]

is this right?

I re-booted after re-inserting the quirk and wireless is gone again

 

[CaseySJ]

is this right?

I re-booted after re-inserting the quirk and wireless is gone again

Are you using the new OpenCore.efi? It needs to be copied into EFI/OC folder.

 

[rondark]

Yes

 

[rondark]

@CaseySJ
Going down a rabbit hole here. I looked at ACPI and saw that I hadn't done the DMAR things for APPLEVTD which I did.
Checked that quirk was still in config.plist.
Re-booted and now Ethernet 2 i211 works but Ethernet i219 doesn't and no wireless.
Perhaps you have a fresh and up to date EFI that you can send me?
Or can you see the problem?

 

[tern]

Please check BIOS parameters as described in main body of Post 1. We should use BIOS F9g or F9i.

We can also press and release CMD-V at OpenCore boot picker to enable screen logging, then select “Install macOS Ventura”.

@CaseySJ
With your guidance, I’m able to install Ventura.
Now, I have to boot from USB, that’s the only choice after hit F12. Do you have a Post Installation guide with OpenCore?

Never mind, I copied EFI folder from USB to Ventura EFI, all works fine.

Again, thank you very much for your help Casey!