How to Fix Surface Book 2 / OpenCore Big Sur - UHD 620 QE/CI Works, but only with external monitor
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
- Verify your network controller model (Intel, Broadcom, Realtek).
- Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
- Clear network interfaces and reset NVRAM if changes don't apply.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
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Hey guys, after hours of researching I managed to inject (partially) my iGPU, and now QE/CI is fully working but only when my external monitor is connected. Btw, I'm using official Microsoft HDMI to USB-C adapter to connect my monitor. Main display is not working at all. EFI I was using: https://github.com/Swung0x48/Dell-Latitude-7390-7490-Hackintosh-EFI/tree/Catalina-OpenCore My specs: CPU: i7-8650u GPU: Intel UHD 620 (8086) RAM: 16gb Audio Codec: External Audio Card Ethernet Card: AX88179 USB 3.0 Ethernet adapter Wifi/BT Card: none. What is not working:
Link to my EFI: https://drive.google.com/drive/folders/1BgvZ3slL15FuzwTfQpt_mLK3lhlWWaNB?usp=sharing [link] [comments] |
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