Bug 437322

Summary:	Ghost Application Launcher with Firefox on wayland on multi monitor
Product:	[Plasma] kwin	Reporter:	Ian Snow <ian.snow>
Component:	multi-screen	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	meven29, mikel5764, nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.21.5
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ian Snow 2021-05-18 20:08:38 UTC

SUMMARY
Using either Firefox X11 or Wayland and watching a stream on https://www.twitch.tv causes the Application Launcher on second screen (there are two screens) to appear as a ghost after activation. Easiest way to see ghost is to hover pinned icons next to Application Launcher icon.

STEPS TO REPRODUCE
1. Have two screens, open Firefox and go to https://www.twitch.tv and watch a stream
2. Click Application Launcher on second screen
3. Hover over pinned icons or move a window around on the second screen

OBSERVED RESULT
A ghost of Application Launcher appears 

EXPECTED RESULT
No ghost of Application Launcher

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
Kernel Version: 5.12.4-arch1-2
OS Type: 64-bit
Graphics Platform: Wayland
Graphics Processor: Radeon RX 580 Series

Comment 1 Méven Car 2021-10-25 10:01:35 UTC

I can reproduce this.

Can you still reproduce it with Plasma 5.23 ?

Comment 2 Ian Snow 2021-10-30 16:58:11 UTC

(In reply to Méven Car from comment #1)
> I can reproduce this.
> 
> Can you still reproduce it with Plasma 5.23 ?

No not now and Arch Linux is now on 5.23.2

Comment 3 Nate Graham 2021-10-30 17:36:27 UTC

Great!