So I've been troubleshooting this issue for a few weeks, and I've finally managed to find a good handle on it, but can't figure out how to fix it. The primary monitor is a Dell 2417DG, the second monitor is a Dell P2418D. Both monitors are driven by a 1080.
Whenever I'm playing a game on my primary with G-Sync on and above 60hz, and have a window maximized on the second, the Dell starts to flicker pretty badly, no matter the FPS. G-Sync is on Full Screen only. The issue happens on both my and my girlfriend's setups, which are largely identical.
Some interesting testing, if Chrome/Firefox/Steam is maximized, it flickers. If it's just open but in window form, it stops. If the window takes up most of the second monitor, >= 95% of screen space, it starts to flicker again.
If chrome or firefox are fullscreen (F11) the flicker goes away. The flicker never appears when Edge is open. Nor does it with something like VLC/MPC-HC.
Both monitors are connected via certified DisplayPort Cables. Hardware acceleration has been disabled in all browsers.
Any ideas on fixes/solutions?
