Description:
Dragging a Calc window from its title bar (typically when maximised) causes it to shrink to 1 pixel wide and a few pixels high. If you right click on its panel element and hit 'unmaximise', it widens by one or two pixels, and you can then try to resize it by successfully hitting the right resize pixel, or use alt+right-click-drag which gives you a bit more room for error.

When I tried to reproduce this, initially I couldn't. This led to some extra information. I have 3 screens. If I have Thunar on the right screen, and open a spreadsheet, the spreadsheet opens in the right window and can be dragged to the middle window no problem. If I move thunar to the middle window and open a spreadsheet, it opens in the middle window. If I try to drag it, it collapses into the small box shape. If I repeat this with another sheet, it collapses into the thin line shape.

I have another bug which might affect this, but it's more recent than this bug so I suspect not but for full disclosure: https://gitlab.xfce.org/xfce/xfce4-panel/-/issues/525 My xfce4-panel doesn't span all 3 monitors, only the first.

Earliest release this affects: unknown but it's been here at least 3 years.
I've not customised much with my install.
Currently on xubuntu 21.04, LO version 7.1.6.2.

Attachments to be added once filed.

Steps to Reproduce:
1. Open a spreadsheet in Calc. Maximise it.
2. Try to drag it using the title bar.

Actual Results:
Window size shrinks to a tiny box in the first instance, and a thin line in subsequent instances.

Expected Results:
Window moves normally, possibly is automatically shrunk to some reasonable size but probably doesn't need to.


Reproducible: Sometimes


User Profile Reset: No



Additional Info:
Version: 7.1.6.2 / LibreOffice Community
Build ID: 10(Build:2)
CPU threads: 12; OS: Linux 5.11; UI render: default; VCL: gtk3
Locale: en-GB (en_US.UTF-8); UI: en-US
Ubuntu package version: 1:7.1.6-0ubuntu0.21.04.1
Calc: threaded

$ glxinfo | grep OpenGL
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) UHD Graphics 630 (CFL GT2)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 21.0.3
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6 (Compatibility Profile) Mesa 21.0.3
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 21.0.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions: