Bug 511527

Summary: UI elements flickering in OBS recording
Product: [Plasma] kwin Reporter: Leandro Guedes <leanguedes>
Component: screencastingAssignee: KWin default assignee <kwin-bugs-null>
Status: REPORTED ---    
Severity: normal CC: kde, marvin.d1099, nate
Priority: NOR    
Version First Reported In: 6.5.1   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Short screen recording of flickering UI elements

Description Leandro Guedes 2025-11-02 16:30:40 UTC
SUMMARY
When recording the screen in Plasma 6.5.x (currently 6.5.1 as of November 2, 2025), several interface components flicker/glitch, including windows. The issue is not noticeable on the screen itself—only in the OBS preview and the final recording.

STEPS TO REPRODUCE
1. In OBS Studio, create a new source (Screen Capture (PipeWire)).
2. In the screen-sharing portal, select your screen.
3. Start the recording.

OBSERVED RESULT
Flickering components, such as Kicker, the bottom panel, the clipboard widget, and windows.

EXPECTED RESULT
No flickering or glitching; smooth recording, as seen in Plasma 6.4.x.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.5.1
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.6-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-3570 CPU @ 3.40GHz
Memory: 16 GiB of RAM (15.6 GiB usable)
Graphics Processor: NVIDIA GeForce GTX 1050 Ti (580.95.05)

ADDITIONAL INFORMATION
I downgraded to Plasma 6.4.x to confirm that the issue is specific to 6.5.x, and indeed, it only started occurring from version 6.5.x onward.
Comment 1 Leandro Guedes 2025-11-02 16:53:33 UTC
Created attachment 186419 [details]
Short screen recording of flickering UI elements
Comment 2 Nate Graham 2025-12-11 16:30:16 UTC
*** Bug 513182 has been marked as a duplicate of this bug. ***