Original post by: oldnwstf ,
Stage light effect is usually caused by a loose or broken display cable. Sometimes it can be resolved just by reseating it. I think that if the display cable is bad, you would most likely looking at a whole new display assembly. The keys however, are the design flaw of the 2016 MacBook Pros. Usually they replaced the keyboard under warranty. Sometimes keys can be remedied by blowing them with a compressed air. Take it to Apple and try to get them fix the machine.