Hi all. I’m relatively new to all of this crt setup at 15khz and I have made an error when using groovymame on a setup I purchased. I have altered the resolution within groovymame to a resolution that the monitor does not support, as such o get a garbled desynched mess in attract mode. If I launch into a game, the resolution switches and is correct through mame, I only have the issue on boot into attract mode. Returning from mame to attract mode the resolution swaps back to what was set and I get desync. I have tried connecting an lcd but that forces the gpu into a resolution it can handle and then I have the inverse problem. When using an lcd if I try to exit attract mode it is not booting me out to the groovymame setup as it used to. Any assistance please?
