Mouse clicks are far from target location at 150% display scaling

[MDSchechtman]

Expected Behaviour

Clicking an object, such as a star, selects that object.

Actual Behaviour

Clicking appears to be offset by a large amount, resulting in distant objects being selected when trying to select a specific target such as a star.

Steps to reproduce

Click a large bright star. Notice that it does not select, and some other star might have been selected instead.

Video: https://www.youtube.com/watch?v=JFXye0eKMHw

I assume this is related to the combination of Arch+KDE+wayland on a 4k monitor with display scaling, and if anyone has advice I would appreciate it.

System

• Stellarium version: 24.1 (flatpak version)
• Operating system: EndeaouvorOS (arch based)
• Graphics Card: Radeon 7900XTX
• Screen type (if applicable): 4k @ 150% scaling, wayland under KDE 6

Logfile

log.txt

[gzotti]

Duplicate of #3733

[github-actions]

This issue already exists.

[MDSchechtman]

@gzotti This issue is not a duplicate of #3733.

My issue does not only occur at high zoom, but at any zoom. We're not talking about nearby stars being selected, but stars roughly three to five inches away on my screen.

Please see the linked video.

[alex-w]

@MDSchechtman could you’re checking the behavior with 100% and 200% scaling of the screen?

[MDSchechtman]

@alex-w No issue at 100% or 200% display scaling.

I did find something else interesting though: initially when Stellarium opens at 150% display scaling, clicking will be accurate but only as long as the window is not resized. After resizing (or going into full screen), clicking is wildly off again and will remain so until the application is restarted.

Resizing the window at 100% and 200% scaling were still fine.

Updated the title.