Bug 407690 - Preview of some window decorations is badly rendered when fractional display scale is used
Summary: Preview of some window decorations is badly rendered when fractional display ...
Status: CONFIRMED
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 5.93.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-05-18 14:11 UTC by Patrick Silva
Modified: 2024-02-03 15:25 UTC (History)
1 user (show)

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

Attachments
screenshot (219.31 KB, image/png)
2019-05-18 14:11 UTC, Patrick Silva 		Details
screenshot taken on Plasma 5.18 (241.47 KB, image/png)
2020-02-11 15:27 UTC, Patrick Silva 		Details
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Description Patrick Silva 2019-05-18 14:11:28 UTC 
STEPS TO REPRODUCE
1. open system settings > display and monitor > "Scale display" button and set display scale factor to 1.2
2. restart plasma
3. open system settings > application style > window decorations

OBSERVED RESULT
See the attached screenshot. Preview of the window decorations looks blurry,
"Plastik" is misplaced/ureadable and has badly rendered fonts, "Formvolvere"
has badly rendered fonts.

EXPECTED RESULT
previews are not blurry, all fonts are rendered correctly.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.15.90
KDE Frameworks Version: 5.58.0
Qt Version: 5.13.0 beta3
Comment 1 Patrick Silva 2019-05-18 14:11:59 UTC 
Created attachment 120168 [details]
screenshot
Comment 2 Nate Graham 2019-05-21 18:51:03 UTC 
Can reproduce.
Comment 3 Patrick Silva 2020-02-11 15:27:45 UTC 
Created attachment 125848 [details]
screenshot taken on Plasma 5.18

Situation is better on Plasma 5.18. But previews are still pixelated/blurry with display scale set to 125%.

Operating System: Arch Linux 
KDE Plasma Version: 5.18.0
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1
Comment 4 Patrick Silva 2021-01-24 18:42:23 UTC 
it's still reproducible with display scale 125% on X11 session.

Operating System: Arch Linux
KDE Plasma Version: 5.20.90
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.2
Comment 5 Patrick Silva 2024-02-03 15:25:45 UTC 
The buttons of Plastik and Oxygen look fuzzy on Plasma 6 RC2.

Operating System: Arch Linux 
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0
Graphics Platform: X11