Experience with Linux mint on e-waste

Pc spec:

Phenom (TM) x4 24500

4gb ddr2

Ssd 120gb

R7 260x oc

Overall it's good but there's a problem.. gpu driver.

Idk know how to fix it but I keep getting this blank screen for short time while idle and gaming on it.So I need advice what should I do for fix long term problem or could be this hardware problem.

(This is my first time and why there is nsfw tags here)