My motto is “ ***''Always look for the simplist solution BEFORE ripping things apart''***.“ Not following this, in the past, has often caused me more problems than I originally started with. Now lets get on with it!
If the display screen is normal in Safe Mode then it is most likely a corrupted video/graphics ''driver/settings'' problem. They can really get their shorts in a knot sometimes, in my experience.
Use one of the total removal graphics driver programs such as “Display Driver Uninstaller (DDU)”.
https://www.wagnardsoft.com/
Follow instructions with program. This program removes every trace of the driver and settings.
If this doesn’t fix the problem then it may be, more rarely, the actual GPU (graphics processing unit) is defective