With just mame by itself: I get the same issue with Robby Robo. If I set video to soft, I don't get any picture. With opengl, at least I get teh flickr.

Here's an interesting question - qmc2 is 64bit. I have both the 32 and 64bit SDL libraries installed. Is qmc2 smart enough to just grab the 64 bit libraries? (same with mame)

SDL-1.2.15-11.fc19.x86_64
SDL2-2.0.0-3.fc19.i686
SDL-1.2.15-11.fc19.i686