MiSTer FPGA Forum

I'm using the digital IO board and converting HDMI -> VGA -> YPbPr. I followed these instructions https://github.com/MiSTer-devel/Main_Mi ... pr-signals for creating a sync on green adapter. By creating this adapter, I was able to get a stable image. Before it was just complete garbage. The horizontal axis is still not working properly as you can see in the video attached. The vertical axis is dead on. I found this https://mysticprysm.com/product/sync-combiner/ which seems like it may help, but I feel like I'm getting deep in the weeds at this point.

Thoughts? Suggestions? (other than purchase the analog IO board, which is a complete last resort)

I've tested with 2 different guncon guns to rule out a hardware issue and I've tried with the NES zapper as well so I don't think this is core or gun related. The guncon just illustrates the issue since with the zapper you can't really see what's going on.