I'd use another monitor. If you happen to mean 'screen' in stead of 'external monitor', first try an external monitor. If that's OK and you don't mind not using the built-in screen, it's solved. In any other case: a new video card (if that can be replaced), a new motherboard (expensive, unless you can do it yourself by installing one from a second-hand same model) or a new laptop.
I keep having this problem on my laptop monitor for almost a week already: checked display..
it also has a notification about a certain "AMD driver that has recovered" ..i already uninstalled it but still keep on having that notification..i would like to know what causes the "checked display" in my monitor..thanks in advance!