https://bugs.kde.org/show_bug.cgi?id=516219
Bug ID: 516219
Summary: Blurry components on application style and window
decoration themes
Classification: Plasma
Product: kwin
Version First unspecified
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 189753
--> https://bugs.kde.org/attachment.cgi?id=189753&action=edit
blurry window decorations and application styles in fractional scaling
After updating to Plasma 6.6, some UI elements no longer render correctly at
non-integer display scaling in themes that looked fine before the update.
Observed issues:
• Window decoration buttons (especially Aurorae themes) appear pixelated or
incorrectly scaled
• Application style elements (e.g., check marks in dialogs like the Keep/Revert
display settings prompt) are also affected
• These themes use large SVG assets that rendered sharply prior to 6.6
• Integer scaling (100% or 200%) renders correctly
• Fractional scaling (e.g., 125%, 150%) causes artifacts
Environment:
• Distribution: openSUSE Tumbleweed
• Kernel 6.18.9-1
• Plasma: 6.6.0
• Frameworks 6.23.0
• QT 6.10.2
• Session: Wayland
• GPU: NVIDIA RTX 4070 Super (proprietary driver)
This suggests a possible change or regression in the fractional scaling or
rendering pipeline rather than a theme issue.
I can provide additional diagnostics if needed. The screenshots below show 100%
vs 125% scaling with vivid dark aurorae window decorations and application
styles. Doesn’t show up with Breeze but these were crisp before the update.
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