How to Fix Screen goes Black when booting BigSur OpenCore USB on Ryzen
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:
Hello,
i made an OpenCore USB Stick for my Ryzen Desktop. It boots a while and i see verbose text, until at some point the screen goes black. I checked the other HDMI ports, and it flashes white briefly before it also goes black. Since the screen get's black, i do not know where the problem resides. I followed the guide on Dortania several times and double checked Bios settings. I also tried with Catalina recovery, same behaviour.
A week earlier i made an USB stick for my Intel Probox23 without any problem.To not confuse things i made 2 separate sticks from the ground up.
My specs:
Gigabyte B550MRyzen 3800X16GB RAMVega64
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