Two graphics cards setup: RX 7900 XTX and RX 550 (Lexa)

[EliteMacx86]

I think that's better ))) The second card was disabled by SSDT. See in attach. But you must enter your PCI path!

Looks good now. Of course, the ACPI path must match the GPU you want to disable. It's already covered in this guide.

GUIDE - How to Spoof Graphics on macOS [Intel/AMD/NVIDIA]

Spoofing Graphics on macOS [Intel/AMD/NVIDIA] This guide covers spoofing Intel/AMD/NVIDIA Graphics on macOS, supported by Clover and OpenCore. By following this guide, you'll be able to spoof an unsupported Graphics on macOS. Overview What is spoofing? Spoofing basically refers to faking...

elitemacx86.com

 

[Olecko]

So, today I booted up macOS and had a black screen. I changed the SSDT method on the old Device Property method and all work.
When I use SSDT my GPU is recognized like AMD Radeon Polaris 4 GB. When I use the Device Property method I have AMD Radeon RX 550 4 GB.

 

[EliteMacx86]

So, today I booted up macOS and had a black screen. I changed the SSDT method on the old Device Property method and all work.
When I use SSDT my GPU is recognized like AMD Radeon Polaris 4 GB. When I use the Device Property method I have AMD Radeon RX 550 4 GB.

That's because the SSDT you're using has the model. You can change it easily.

 

[Olecko]

So, today I booted up macOS and had a black screen.

And what you think about this?

 

[EliteMacx86]

And what you think about this?

There could be several causes. Provide your PR Files to check further.

 

[Olecko]

What are the PR Files? EFI?

 

[EliteMacx86]

What are the PR Files? EFI?

FAQ:

READ FIRST! macOS/OS X Frequent Questions

macOS/OS X Frequent Questions - FAQ Before posting your queries, several common questions have been already answered and some exist in the sticky threads in the dedicated support forum. Read this post before you start your journey with macOS/OS X and before posting your doubts and queries...

elitemacx86.com

 

[Olecko]

Here is EFI

 

[EliteMacx86]

Here is EFI

Here are a few issues.

Make the following changes to your config.plist

- Enable RebuildAppleMemoryMap and SynRuntimePermissions in Booter>Quirks section.
- Remove all Device Properties.
- Kexts loading order is not correct. Important Kexts should load first.
- Enable PanicNoKextDump and PowerTimeoutKernelPanic in Kernel>Quirks section
- Add alcid=1 and remove e1000=0 from boot args.
- Drivers loading order is not correct. Important Drivers should load first.
- Remove HfsPlus.efi and use OpenHfsPlus.efi.

Once you're done with the changes, save your config.plist. Restart the system and reset NVRAM twice. Attach the new PR files.

 

[Olecko]

Here are a few issues.

Make the following changes to your config.plist

- Enable RebuildAppleMemoryMap and SynRuntimePermissions in Booter>Quirks section.
- Remove all Device Properties.
- Kexts loading order is not correct. Important Kexts should load first.
- Enable PanicNoKextDump and PowerTimeoutKernelPanic in Kernel>Quirks section
- Add alcid=1 and remove e1000=0 from boot args.
- Drivers loading order is not correct. Important Drivers should load first.
- Remove HfsPlus.efi and use OpenHfsPlus.efi.

Once you're done with the changes, save your config.plist. Restart the system and reset NVRAM twice. Attach the new PR files.

YES - Enable RebuildAppleMemoryMap and SynRuntimePermissions in Booter>Quirks section.

YES - Remove all Device Properties.

- Kexts loading order is not correct. Important Kexts should load first. - What is wrong with my order?
My order is:
- Lilu.kext
- VirtualSMC.kext
- WhateverGreen.kext
- SMCProcessor.kext
- SMCSuperIO.kext
- SMCRadeonGPU.kext
- RestrictEvents.kext
- USBMap.kext
- RadeonSensor.kext
- AirportItlwm.kext
- BlueToolFixup.kext
- IntelBluetoothFirmware.kext

YES - Enable PanicNoKextDump and PowerTimeoutKernelPanic in Kernel>Quirks section

- Add alcid=1 and remove e1000=0 from boot args. - I don't use AppleALC (I have USB sound card integrated into my mobo.) e1000=0 - this need for my network.

- Drivers loading order is not correct. Important Drivers should load first. - What is wrong with my order?
My order is:
- OpenRuntime.efi
- OpenCanopy.efi
- OpenHfsPlus.efi
- ResetNvramEntry.efi
- ToggleSipEntry.efi

YES - Remove HfsPlus.efi and use OpenHfsPlus.efi.