Bug 508708 - Content jitter on vertical window resize
Summary: Content jitter on vertical window resize
Status: RESOLVED UPSTREAM
Alias: None
Product: systemsettings
Classification: Applications
Component: general (other bugs)
Version First Reported In: 6.3.4
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-08-25 11:15 UTC by Alexander Potashev
Modified: 2025-09-25 17:28 UTC (History)
1 user (show)

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


Attachments
screencast (2.10 MB, video/x-matroska)
2025-08-25 11:15 UTC, Alexander Potashev
Details

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Description Alexander Potashev 2025-08-25 11:15:25 UTC
Created attachment 184431 [details]
screencast

SUMMARY
Content jitter on vertical window resize.

STEPS TO REPRODUCE
1. Drag&drop to slowly increase/decrease window height.
2. 
3. 

OBSERVED RESULT
The window content, i.e. the Quick Settings KCM view jitters while resizing the window.

EXPECTED RESULT
The UI elements that eventually preserve position shouldn't move at all.

SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux rodete 
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.13.0
Qt Version: 6.8.2
Kernel Version: 6.12.27-1rodete1-amd64 (64-bit)
Graphics Platform: X11
Processors: 14 × Intel® Core™ Ultra 7 165U
Memory: 62.3 GiB of RAM
Graphics Processor: Intel® Graphics


ADDITIONAL INFORMATION
Comment 1 Bug Janitor Service 2025-08-25 11:33:41 UTC
Thank you for the bug report!

However Plasma 6.3.4 no longer receives updates or maintenance from KDE; active versions are 6.4 or newer. Please upgrade to an active version as soon as your distribution makes it available to you. Plasma is a fast-moving project, and bugs in one version are often fixed in the next one.

If you need help with Plasma 6.3.4, please contact your distribution, who bears the responsibility of providing help for older releases that are no longer receiving updates from KDE.

If you can reproduce the issue after upgrading to an active version, feel free to re-open this bug report.
Comment 2 Alexander Potashev 2025-08-31 15:52:59 UTC
Same problem in 6.4.1.

Operating System: Fedora Linux 41
KDE Plasma Version: 6.4.1
KDE Frameworks Version: 6.15.0
Qt Version: 6.8.3
Kernel Version: 6.15.4-100.fc41.x86_64 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz
Memory: 16 ГиБ of RAM (15.4 ГиБ usable)
Graphics Processor 1: Intel® HD Graphics 530
Graphics Processor 2: NVIDIA GeForce GTX 960M
Comment 3 Nate Graham 2025-09-25 17:28:41 UTC
This is a Qt issue that affects all QtQuick-based UIs. Thankfully it's already fixed in Qt 6.9.