Bug 469052

Summary: document jitters on selection and window resize when hi-DPI scaling is used
Product: [Applications] okular Reporter: Flupp <Flupp+bugs.kde.org>
Component: generalAssignee: Okular developers <okular-devel>
Status: REPORTED ---    
Severity: normal CC: anhollander516
Priority: NOR    
Version First Reported In: 23.04.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: screencast showing the jittering

Description Flupp 2023-04-27 12:41:52 UTC
Created attachment 158484 [details]
screencast showing the jittering

When starting or aborting a text selection and when resizing the Okular window, the document content jitters slightly (see attached okular-jitter.gif). It seems the problem only occurs when the UI is scaled. I use 1.25 for QT_SCREEN_SCALE_FACTORS (configured to 125% via systemsettings). When starting Okular with unset QT_SCREEN_SCALE_FACTORS, I cannot reproduce the problem.

I started to notice the problem first with the recent version of Okular (23.04.0).

Operating System: Arch Linux 
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
Kernel Version: 6.2.12-arch1-1 (64-bit)
Graphics Platform: X11
Comment 1 Avraham Hollander 2024-11-29 18:21:38 UTC
*** Bug 492286 has been marked as a duplicate of this bug. ***