When playing a game, the video signal disappears and the screen goes black. Changed the dp line. hdmi lines are the same。The game can be seen in the game window mode 1024x768. In the game, choose full screen or enlarge the window to lose the video signal prompt, and then the screen goes black.Any game. World of Tanks. War Thunder and other 3d gamesIn addition to games. Everything is normal when watching web videos. There will be a horizontal line when you start the computer, composed of green dots. Then there is no response. Wait for the host switch to restart.