Created attachment 149423 [details] screenshot of mispositioned menu STEPS TO REPRODUCE 1. Connect external monitor 2. Start Plasma Wayland session 3. Open Display Configuration in System Settings 4. Drag representations of monitors such that their top edges are not aligned, click Apply 5. Open QWidgets application, for example Kate, and open a menu OBSERVED RESULT Menu is shown in an incorrect position, for example to the right side of the window EXPECTED RESULT Menu is shown at the clicked location SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.24.5 KDE Frameworks Version: 5.93.0 Qt Version: 5.15.3 Fedora 36 ADDITIONAL INFORMATION Workarounds: 1. Start Qt application with `-platform xcb` to run with XWayland (not great due to blurry high DPI scaling) 2. Align tops of monitors in Display Configuration I cannot reproduce this with GNOME Wayland, so it seems to be an issue in the interaction between KWin and Qt's Wayland QPA.
Monitor scale factor does not affect this. The crucial aspect is whether the top edges of the monitors are aligned in Display Configuration.
Rather the crucial aspect is if there's a screen at the logical point of 0,0. there's a qt bug upstream
> there's a qt bug upstream Can you link that here?
Ping David, could you link to that upstream Qt bug?
*** Bug 455609 has been marked as a duplicate of this bug. ***
(In reply to Be from comment #4) > Ping David, could you link to that upstream Qt bug? (In reply to Nicolas Fella from comment #3) > > there's a qt bug upstream > > Can you link that here? I assume it's this one: https://bugreports.qt.io/browse/QTBUG-85297 ?