Bug 484003

Summary: Incorrect pixel size shown when taking a rectangular region screenshot with fractional display scales
Product: [Applications] Spectacle Reporter: neobrain <bugs.7ng0x>
Component: GeneralAssignee: Noah Davis <noahadvs>
Status: RESOLVED DUPLICATE    
Severity: normal CC: kde, nate
Priority: NOR    
Version First Reported In: 24.02.0   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description neobrain 2024-03-19 14:51:14 UTC 
SUMMARY
Spectacle shows the wrong pixel count when taking a screenshot using "Rectangular Region" if fractional display scaling is used. For example, when dragging a rectangle across the entire screen on my 1080p monitor, Spectacle claims to cover an area of 3071x1727 pixels. The saved screenshot itself has the correct dimensions.

STEPS TO REPRODUCE
1. Set display scale to 125%
2. Open spectacle and take a screenshot via "Rectangular Region"
3. Drag a rectangle across the entire screen and observe the pixel count

OBSERVED RESULT
On my 1080p monitor, the full-screen rectangle is shown to have 3071x1727 pixels.

EXPECTED RESULT
Either the physical (1920x1080) or the logical (1536x864) number of pixels should be shown. (For reference, non-fractional scales 100% and 200% currently both report 1920x1080 pixels.)

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.0.2
KDE Plasma Version:  6.0.2
KDE Frameworks Version:  6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION
I'm running Wayland.
Comment 1 Nate Graham 2024-04-11 01:57:50 UTC 

*** This bug has been marked as a duplicate of bug 478426 ***