on beta 3, recently updated windows, but not sure if that triggered this or not.

when mirroring a chrome window, attempting to make the mirror wider than (I think?) 2048px (provided the mirror is also of sufficient height), causes the mirror to render the chrome window incorrectly. The main area of the window is compressed and the most part of where the window should occupy becomes grey.

edit: not just chrome.

There's no difference. Every window mirror enlarged to a sufficient size will exhibit the bug. reproducible 100%

mirrored correctly (scaled down): https://imgur.com/gkoOED8

mirrored incorrectly (scaling is completely wrong and a grey zone has been added): https://imgur.com/JnUA9jI

Here you go

That makes it easier to reproduce the issue, but is not required. As I said, the mirror window just needs to be enlarged to a sufficient size. Maximizing both the source and mirror instantly causes this issue.

You have it maximized to the smaller display? Which one is the mirror? Maximize both to 2560x1440

Just took a closer look at that screenshot. Idk if it matters but my mirror windows are borderless. Also my taskbars auto hide and there is no red border around the mirrored window. Also I have splits configured on the surround display with bezel correction enabled.

I'm at a loss right now. I was just about to post saying that I couldn't reproduce the issue no matter what I did, but then I accidentally rebooted my computer and it started happening again. Here's a screenshot: https://i.imgur.com/FnSw6gA.png

I am running sli on two 2080 Tis with slightly older drivers (a few months old at most maybe). I could try testing without SLI at some point when I get a chance. I'd say it's more accurate to say that it working correctly is intermittent. That one time when I was trying to reproduce the issue is the ONLY time I've ever seen it not have the issue in a long time.