How to Fix AMD Radeon RX 550 - 560 injected with Opencore macOS Big Sur
This mini-guide provides a structural approach to troubleshoot and fix the issue.
Prerequisites
- Confirm your hardware specifications (CPU, GPU, Motherboard).
- Ensure you have a bootable recovery USB and backup your EFI.
Fix Steps
- Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
- Ensure Metal acceleration is fully supported for your macOS version.
- Update Lilu and WhateverGreen to the latest versions.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
I have installed macOS Big Sur in a HP prodesk 400 G1 SSF. everything works for me, except the AMD Radeon RX 550 4GB graphics card, because I don't know how to inject into the OpenCore device properties section.When I was using Clover, it was easy because with fakepciid.kext was injecting the EDID + ati + radeonint + fake pci id ... but with OpenCore, I can't manage to inject these properties ... can someone help me?
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