Hy, sorry for my bad english. I try to build a gameboy with my RPI3. I start a game, no matter is it a gameboy,playstation..... game. When i connected my RPI with HDMI at my TV every game starts, but when i changed to the composite output i can switch to the game and can press Start and then i get a black screen. I restart my PI and everything is ok only when i change to KODI or try to start a Game. I hope someone understand what i mean and can help me.