Bug 509023 - Blurry "Applications" menu in System Monitor with fractional scaling
Summary: Blurry "Applications" menu in System Monitor with fractional scaling
Status: RESOLVED DUPLICATE of bug 445759
Alias: None
Product: plasma-systemmonitor
Classification: Applications
Component: general (other bugs)
Version First Reported In: unspecified
Platform: CachyOS Linux
: NOR normal
Target Milestone: ---
Assignee: KSysGuard Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-09-02 09:12 UTC by checkybox
Modified: 2025-09-24 13:40 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
100% scaling, looking sharp (145.08 KB, image/png)
2025-09-02 09:12 UTC, checkybox
Details
125% scaling, blurry Applications menu (203.21 KB, image/png)
2025-09-02 09:12 UTC, checkybox
Details
125% scaling, launched with mentioned environment variable (202.15 KB, image/png)
2025-09-02 09:13 UTC, checkybox
Details

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Description checkybox 2025-09-02 09:12:06 UTC
Created attachment 184642 [details]
100% scaling, looking sharp

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SUMMARY
When fractional scaling is set to 125%, System Monitor renders the "Applications" menu blurry in the Overview tab. The issue isn't preset with 100% scaling. Using 2560x1440 display on Wayland plasma session.

STEPS TO REPRODUCE
1. Set monitor scaling to 125%
2. Open System Monitor
3. Head to the "Overview" tab (it should be opened by default)
4. Look at the "Applications" menu at the bottom

OBSERVED RESULT
The whole widget is blurry in comparison to the other widgets above

EXPECTED RESULT
The widget should look crisp

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: CachyOS Linux
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2

ADDITIONAL INFORMATION
Possibly related to 503823
If launched with the following environment variable 'QT_SCALE_FACTOR_ROUNDING_POLICY=Ceil', the mentioned blurry menu now looks crisp and clean.
Comment 1 checkybox 2025-09-02 09:12:53 UTC
Created attachment 184643 [details]
125% scaling, blurry Applications menu
Comment 2 checkybox 2025-09-02 09:13:32 UTC
Created attachment 184644 [details]
125% scaling, launched with mentioned environment variable

QT_SCALE_FACTOR_ROUNDING_POLICY=Ceil plasma-systemmonitor
Comment 3 Arjen Hiemstra 2025-09-24 13:40:27 UTC

*** This bug has been marked as a duplicate of bug 445759 ***