When I drag a window from the first screen ot the second one - it finally snaps back to the first screen. If a window opens on the second screen - once I start dragging it, it momentarily snaps back to the first screen. The only think I can do is drag the window so that it's over 50% on the second screen and then maximize the window - which maximizes it on the second screen. But trying to do anything else will snap the window back onto to first screen.
Do you have a panel between the screens?
No, each screen has it's own panel on the bottom - they are placed side-to-side. This has started randomly after a regular system power cycle. Didn't upgrade anything else than CUDA and nVidia drivers lately.
Created attachment 103348 [details] attachment-8142-0.html That is what I mean: do you have a panel on one screen which borders the other screen?
Created attachment 103350 [details] My desktop This is how my desktop looks. Trying to move a window forces the mouse to never cross the border between the monitors - the window itself can cross it though. I can maximize it on the right screen even, but not place it anywhere manually - the mouse will snap back to the left screen's right edge.
I uploaded "My desktop" PNG image. I tried placing the panels on outer vertical edges of my screens (away from the middle) - but the window moving behaviour didn't change.
Thanks for the image, that helps.
I have found a solution! Changing the Primary Display in Display Configuration seems to have fixed the problem for me.
5.11 will have improvements concerning the window movement with multiple screens. It is quite likely that those changes also fixed this issue (personally I'm 99 % sure). Given that I mark as fixed. If you are able to reproduce with 5.11 I kindly request to reopen this issue.