I have the Hyperpixel4, Raspberry pi 4 and I’m trying to rotate the display. But after many many hours, I suspect that its impossible. If the dtoverlay=vc4-fkms-v3d is uncommented, then the display will rotate, but retropie fails because it needs the dtoverlay=vc4-fkms-v3d to run.
So the question, is it impossible to get the display in landscape mode in retropie?