Bug 509023

Summary:	Blurry "Applications" menu in System Monitor with fractional scaling
Product:	[Applications] plasma-systemmonitor	Reporter:	checkybox
Component:	general	Assignee:	KSysGuard Developers <ksysguard-bugs>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	ahiemstra, plasma-bugs-null
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	CachyOS
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	100% scaling, looking sharp 125% scaling, blurry Applications menu 125% scaling, launched with mentioned environment variable

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 ***