Laptop screen flickers while playing. What can be the reason?

I have the following problem. The screen of my laptop has been flickering permanently since yesterday when I play. So bad that I can't see anything. I uninstalled and reinstalled the driver of the graphics card, nothing helped. Otherwise I have no problem with the picture, only when games are running.

Go for repairs so that if the display got what got it alone anyway I go there.

Which laptop and which games are you talking about? Is this the case with all games?