510875 – Floating Panel pixel border when defloating

Bug 510875 - Floating Panel pixel border when defloating

Summary: Floating Panel pixel border when defloating

Status:	CONFIRMED

Alias:	None

Product:	plasmashell
Classification:	Plasma
Component:	Panel (other bugs)
Version First Reported In:	6.4.5
Platform:	EndeavourOS Linux

Importance:	NOR minor
Target Milestone:	1.0
Assignee:	Plasma Bugs List

URL:
Keywords:

Depends on:
Blocks:

Reported:	2025-10-21 16:36 UTC by Soup
Modified:	2025-10-23 15:21 UTC (History)
CC List:	4 users (show)

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

Attachments
The Pixel Border (70.28 KB, image/png) 2025-10-21 16:36 UTC, Soup	Details
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Description Soup 2025-10-21 16:36:02 UTC

Created attachment 185968 [details]
The Pixel Border

SUMMARY
When the panel is set to floating-mode and you make it retract by fullscreening a window or pushing one up against it and then making it float again a one pixel border appears on the top of the panel that only goes away when interacting with the desktop or panel.


STEPS TO REPRODUCE
1. Make the Floating Panel retract / go into normal mode
2. Make it float again
3. Observe

OBSERVED RESULT


EXPECTED RESULT
No pixel border appears around it

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.4-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 5600 6-Core Processor
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: AMD Radeon RX 6700 XT

ADDITIONAL INFORMATION
Happens on my Intel Laptop and AMD Desktop
When recording / receiving a notification the pixel border is only visible for less than a second

Comment 1 TraceyC 2025-10-22 20:18:38 UTC

Thanks for the bug report. I can reproduce this on git-master

Panel set to always visible, floating - panel and applets