Solved Graphical Tearing/Glitches in Fullscreen

January 2, 2019 at 02:00:27
Specs: Windows 7
I recently bought a new monitor (ASUS ROG Swift PG348Q), and I also just recently happened to start playing around with Unity by making a super simple game. My primary monitor is the new ultrawide, and my secondary is another ASUS monitor I've had. I keep my task bar on my secondary monitor to have as much room on the primary (This becomes relevant later. Also full system specs below).

In Unity itself, when maximized, I have noticed some slight flickering/tearing. Except this is not normal tearing where half the screen becomes out of sync. The screen appears to actually be tearing open and the desktop is displayed through this flickery mess. Even if I have other windows open in the back, it will only show the desktop.

When I actually go to play my game from Unity (maximized or fullscreen), the tearing is consistent, but only when I am providing input by pressing keys or moving the mouse (not so much mouse, but 100% with key presses). If I am not touching anything, it runs fine. When I run this game in windowed mode (not maximized, but stretched to be basically maximized) there is no issue.

If I put my Windows taskbar back to my primary monitor, the issue goes away. 100% gone -- no issue. I've also tried reducing the monitor's refresh rate back to 60hz with no luck (but who really wants that to be their solution anyway?).

The reason I post this here instead of assuming it is a problem with Unity (or the stupidly simple game I have made) is because I have also seen this happen on my laptop (Lenovo G50) when in a fullscreen game. The tearing would only occur when the Windows 10 game bar popup would appear, or if there was some other menu overlay being drawn in the game I had.

System Specs:
Graphics Info:
Video of this issue: It does look like black, but that is just my dark desktop showing through.

No idea where to go with this issue. Any help is appreciated!!

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January 2, 2019 at 02:33:02
✔ Best Answer
I would start with the graphics driver, is it up to date?

i5-6600K[delid]@4.7GHz/@1.392v LLC=6 | 2x4GB Crucial-DDR4-2400CL17@14-15-15-28 1T 3000MHz@1.4v | MSI Armor RX 570 4GB@1415Mhz core@1.2v/1920MHz

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January 2, 2019 at 03:19:30
Embarrassingly, no, it was not. I had the misconception that geforce experience would be keeping things updated. Turns out it was still running on a driver from early 2017, many, many versions behind.

I have now updated that. Issue seems to be resolved. Silly oversight on my part.

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