Hi I am still having trouble with this. I tried every line multiplication mode I could and nothing worked. I also tried passthru and that didn’t work. The TV still says “Signal not supported”. Before I choose AV1 input though, I get a grey scale screen.
On the OSSC screen for my Neo Geo it says AV1 : RGBS 263p 15.71Khz 59.795 Hz
Please explain more about DVI mode. Can I still use that with HDMI cable?