How to Fix Need help with dGPU Haswell Catalina OC Build
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:
Hi guys,
Catalina is running great with iGPU HD3000 but I cannot seem to get my RX580 to work properly. I've attached my EFI Folder via google drive below, everything looks good in sanity checker. Added platform ID for headless mode, just cannot get through the boot. When I disconnect the dGPU and revert changes Catalina boots in 15 seconds. What am I missing in config/kexts?
Can anyone tell me what I am doing wrong?
- Haswell i5
- GA-Z170MX-5
- 32gb ram
- RX580
See my EFI folder below:
https://drive.google.com/drive/folders/1DkMHacWZd4gchdUd7md20ITbf3yxf1Cq?usp=sharing
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