Created attachment 134023 [details] Screenshot of dolphin restored window position off the screen SUMMARY I have a 4K screen on the top, and FHD screen on the bottom. In System Settings, they are in vertical layout, center aligned, with 150% scale factor. (In the past we have fixed a lot of weird issue with Qt widget positioning in HiDPI+Dual-Screen. Not sure if this is another one.) STEPS TO REPRODUCE 1. Open Kate/Dolphin, don't maximum. 2. Move window into the bottom screen (smaller one, FHD). 3. Close the window. 4. Reopen and check if the window is in same position. OBSERVED RESULT Each time I reopen the app, window position a is move bit right and bottom, until it is partly off screen. EXPECTED RESULT the app should always open in the same position. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION When I open the app in top screen (bigger one, 4K), it can always restore the exact same position.
Apps that move their position a bit towards right and bottom each time when reopen: - Dolphin - Kate Apps that always reopen in left top corner: - Konsole - Gwenview - Filelight Above issues only appears in the smaller screen. No problem when the window is in the bigger screen. Apps I tested that don't have this issue: - VS Code (Electron base) - Telegram (C++/Qt/QML based) - Git Cola (Python/Qt/Widgets based) - GIMP (C++/GTK based)