Created attachment 147798 [details]
Initial window on hdpi screen

Description of problem:

Libreoffice scaling is off when starting on HDPI screen in multi-monitor setup. Two monitors: 1050x1680 in portrait mode, 3840x2160 Landscape mode (150% scaling). 
1. If window opens on hdpi screen the scaling is off and menu bar & icons too small (see 1.png). Proper scaling if it happens to open on normal screen.

2. Dragging window fully onto normal resolution screen changes menu scaling to normal once fully moved over (see 2.png), but page sizing is off. 

3. Slightly resizing window restores page, side bars, and bottom icons. (see 3.png)

4. Window stays properly scaled when moved back onto hdpi screen (see 4.png)

5. Opening a dialog window such as print results in improperly scaled window contents. (see 5.png)

6. Dragging dialog window back onto normal screen causes contents to rescale. Dialog stays properly scaled when dragged back onto hdpi screen.

7. Sliding window over to the right reverts to small scaling when left edge of window is approximately 1/4 of the way from left edge of hdpi monitor.



Version-Release number of selected component:

Plasma 5.24.3, Frameworks 5.91.0, Qt 5.15.2, kernel 5.16.16-200.fc35.x86_64, Wayland.
Libreoffice 7.2.5.2.0+


How reproducible:

Every time

Steps to Reproduce:
1. Open Libreoffice on monitor setup as described above.
2. Drag window fully onto normal screen
3. Drag window back onto hdpi screen

Actual results:
improper window scaling

Expected results:
Proper window scaling

Additional info:




ADDITIONAL INFORMATION
This was also filed as a bug under Redhat bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=2051042, but comment there was to file this upstream.