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4k Alt-tab issue

Moley

Moley

Moley

Soldato
Joined
29 Aug 2006
Posts
4,250
Location
In a world of my own
I don't know if this is a card issue, a monitor issue, driver issue, windows issue, etc. I'm posting here to see if anyone else has experienced this and found an answer.

I'm running Windows 10 Pro v20H2 (19042.1165) with Nvidia driver version 471.68.

I have two Samsung LU28R55 4k monitors running off a Gigabyte Eagle OC 8G RTX 3070.

I tend to run a game on monitor 1 and a browser on monitor 2 and often alt-tab to 'release' the mouse from the fullscreen game to access the browser. This has been find for over a year but recently has become problematic.

As an example I started playing AC Valhalla yesterday and when launching it, it goes immediately into the background and I can't bring the window up. I can't alt-tab or win-tab into it. The only thing that fixes it is to go into windows display settings and stop extending to the second monitor. This allows AC to go full screen.

I have several apps that don't have to be alt-tabbed too as well.

I've done a DDU cleanup and reinstall of Nvidia drivers and that's made no apparent difference.

Any ideas?
 
Did it previously work with AC and now it doesn't? Reason I ask is that I've found some games are just buggy with ALT+TAB.
 
Tetras said:
Did it previously work with AC and now it doesn't? Reason I ask is that I've found some games are just buggy with ALT+TAB.
Click to expand...

Yeah it was fine. I'm going to stick with borderless for a while, I guess I can put up with a minor fps hit.
 
So this problem has steadily been getting worse to the extent that newly installed games refused to run full screen. I've tried everything I could think of to resolve and in the end bought a new boot ssd and did a fresh windows install and as if by magic the problem has disappeared. Happy to be gaming properly again, not happy to not know what caused it. Thank god all my games are locally installed (4TB worth of SSDs) and I barely have to download anything again - at 25Mbps that would be painful.
 
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