Chosen Solution

So when I try to play a game, my screen is working, everything is fine.

Then 2 minutes later, my screen become all blured then all white and I don’t see anything.

But the game is still working, I can hear the sounds and I can play, but without any image, but I know the games work, I tested and I recognized the sounds.

Now, the screen was working without any bug (tested for 10 minutes, a record), but since I did nothing, I am afraid it will come back ( I had this problem for more then 2 years).

I wonder what is going on? How to fix it?

Might be a heat problem. Make sure the unit has lots of ventilation. Try blowing a fan on it to see if it plays longer than usual before acting up. Could also be a loose connection, cold/cracked solder joint or failing component. You will have to open the unit to do a visual inspection, reset cabling etc