https://bugs.kde.org/show_bug.cgi?id=503823
Bug ID: 503823
Summary: "Screenshot of Selection": Blurry with fractional
scaling
Classification: Applications
Product: kate
Version: 25.04.0
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwrite-bugs-n...@kde.org
Reporter: madness...@proton.me
Target Milestone: ---
Created attachment 180973
--> https://bugs.kde.org/attachment.cgi?id=180973&action=edit
Screenshot taken at 100% scaling.
SUMMARY
When trying to save a screenshot of a selection with fractional scaling, the
output is very blurry.
STEPS TO REPRODUCE
1. Set monitor to 125% scaling (Desktop -> Right Click -> Display
Configuration).
2. Open Kate and browse to any document.
3. Select 1 or more lines
4. Right click and select "Take Screenshot of Selection".
5. Click on "copy".
6. Open Dolphin and paste the file.
Due to bug 503821 directly saving it doesn't work. You need to copy/paste the
screenshot.
OBSERVED RESULT
The screenshot is much blurrier when fractional scaling is enabled.
EXPECTED RESULT
Image quality similar to screenshots taken at 100% scaling.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Linux 42
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
ADDITIONAL INFORMATION
- Launching Kate with `QT_SCALE_FACTOR_ROUNDING_POLICY=Ceil` drastically
improves the image quality.
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