I have an Alienware aw3420dw. 99.9999% of the time, it is perfect. But rarely (2 times in the last year), I will get an effect as seen--attached. The screen is split in half with the left side showing the effect. I also run a 2080 super, but I don't think its a video card problem, because I am able to navigate the mouse around behind the artifacts on the left side, and very carefully find the start menu and shut down the computer. On restart, the screen is fine for months until it seemingly randomly happens again.
Anyone seen this or have any idea what may be causing this? Thanks.