I wasn't jealous, I was simply pointing out that if you're flinging Linux-related hardware around for MAME, then logically you oughta have asked me first. What you didn't see is that I was promptly offered free hardware by multiple people in private messages and I refused all of it.
> I would like to have 100% G-Sync compatibility with black frame insertion without > having to use Groovymame anymore. The black frame insertion in Groovymame doesn't do > it right.
I'm not sure how to break this to you, but it's not possible in MAME's architecture to do the African-American frame insertion temporally correctly. You'd need to be able to split frames in two, vsync on each "half frame", and then only draw the emulated machine's display on the even half-frames. Whatever Groovymame does is about as close as anyone's likely to get.