It may just be a loose video cable. My kid’s Chromebook goes black twice a year. I remove the two screws holding the bezel around the screen, remove the bezel, and carefully tilt the lcd forward. I then just push the cable in better and try to tape it in place. Takes about two minutes.

It may just be a loose video cable. My kid’s Chromebook goes black about twice a year. I remove the two screws holding the bezel around the screen, remove the bezel, and carefully tilt the lcd forward. I then push the cable in and try to tape it in place. Takes about 3 minutes.