I was running rx 560 in the 2nd pcie slot, and a 2080 super in the first pcie slot, and got sick of swapping the cable. So I upgraded to a 6900xt and took out the 560 and 2080, leaving only the 6900xt. Now it boots to a black screen.
I have added adgpmod=pikera (I know I spelled that wrong, I’m not at my computer, but I copy and pasted) into the config.plist in my efi folder for my boot usb. It still gives a black screen, and I can’t remember how to clear nvram in opencore.
Yet I also feel like I’m missing something.
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