After hours of struggle I managed to boot Opencore to the install screen, but then... black screen, what to do?

I managed to suceffuly boot the opencore stick until it finished loading the apple logo bar, but then the screen goes off, i think it has to do with my graphics card, a old R9 280x, what is the correct boot argument for this card? ah, its a ryzen 7 2700 CPU.

submitted by /u/Kaikidan
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