Created attachment 142987 [details] a cropped and resized screenshot of the right screen SUMMARY If there's an empty space between screens, Plasma acts weird when logging in: the content of another monitor is shifted filling that gap. It's easily observable when using a splash screen, but reproducible even without that. STEPS TO REPRODUCE 1. Set your screens to have a space between them. 2. Log out. 3. Log in. OBSERVED RESULT See that there's a panel in the top-right corner? Below that there's a pile of desktop wallpaper. The area to the left is covered by the splash screen. Every time I log in this happens. Turning splash off can't help because when it's off Plasma wallpaper acts the same way. EXPECTED RESULT Kscreen settings (including screens' position) should be honored from the very beginning of Plasma start-up. SOFTWARE/OS VERSIONS Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.23.2 KDE Frameworks Version: 5.87.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION
Created attachment 142988 [details] monitors configuration This is a configuration of screens that results in this weird behavior I described above.
Strange, now it's gone. All I did was updating qt5-wayland (unlikely related, because the issue was observed in X session) and downgrading nvidia driver from 495 to 470 series -- probably has no relation too since this is an Optimus laptop and it is Intel's iGPU job to render the desktop, not Nvidia's dGPU one.