I have a Sega Naomi Universal cab with a Nanao M9-29SU monitor.
I have it connected to a Windows 10 PC with a Radeon R9 380X, running GroovyMAME.
The PC connects via the DVI-I port, with a VGA adapter.
The problem is I'm getting vertical scrolling. I've adjusted the pots and can't seem to get a stable image so I think there's another issue. Either a hardware issue with the CRT or a software issue with CRTemudriver, calamity drivers and VMMaker
Here is a video of the issue:
Does anyone have any suggestions here?
Thanks