blacked out screen

I have a user whose monitors will randomly black out. The computer is still running, and when he inputs Winkey+ctrl+shift+B it restores the screens. The shortcut restarts the graphics drivers which leads me to believe it is a driver issue. he will also occasionally receive a pop up saying...

Hey guys, < Last updated: 11/16 - SOLUTION FOUND > A few months ago I purchased two identical computers from CyberPowerPC. Both machines have been having the same issue: as titled, while gaming, the display randomly disconnects. I can still hear my game running in the background, however, the...