No video output from dGPU

Hey fellas, I have an issue with my HP 800 G5 DM, with i5 9600t and RX 560. I used an EFI with a similar model found on GitHub. But I can’t get any video output from the dGPU ports after boot into macOS Big Sur, although it works in open core as well as at the apple loading logo. It then goes into a black screen with back light on. I tried changing the platform id following whatevergreen’s faq but it only switches on/off with the iGPU ports. What should I do for the next step?

submitted by /u/hellarch
[link] [comments]