Hey Mald0n I used the data that you posted (PciRoot(0x0)/Pci(0x2,0x0)) but now the monitor goes off (previously it was working but had only 5mb in video and the resolution was 1024 max), I tested with HDMI and DisplayPort.
I have i5 10400 + asus prime z490m-plus Also I have Catalina 10.15.3
Can you help me? I'm going to buy you a beer