Bug 485604

Summary: If XWaylandVideoBridge is installed, and I log into a GNOME session, a blank white window artifact is shown on the top left just below the Activities icon
Product: [Applications] XWaylandVideoBridge Reporter: Michel Lind <michel>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: REPORTED ---    
Severity: normal CC: aleixpol, istillalive, kde, kevin.legouguec, sheep-gains-ecard
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Bug Depends on: 474966    
Bug Blocks:    
Attachments: GNOME top left corner with XWaylandVideoBridge installed
GNOME top left corner with XWaylandVideoBridge removed

Description Michel Lind 2024-04-15 17:58:30 UTC
Created attachment 168566 [details]
GNOME top left corner with XWaylandVideoBridge installed

SUMMARY
On a fully updated Fedora 40 pre-release system, if I have GNOME and KDE both installed (first installing Fedora Workstation, then 'sudo dnf groupinstall @kde'), a blank window artifact is shown when logging into a GNOME session

STEPS TO REPRODUCE
1. Install Fedora Workstation 40 pre-release
2. `sudo dnf groupinstall @kde`
3. Log into KDE
4. Log into GNOME

OBSERVED RESULT
See attachment

EXPECTED RESULT
No video artifact, see second attachment which is taken after uninstalling xwaylandvideobridge

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fedora Linux 40 (Workstation Edition)
(available in About System)
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.1.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION
$ rpm -q xwaylandvideobridge
xwaylandvideobridge-0.4.0-3.fc40
Comment 1 Michel Lind 2024-04-15 17:59:28 UTC
Created attachment 168567 [details]
GNOME top left corner with XWaylandVideoBridge removed
Comment 2 Michel Lind 2024-04-15 18:00:31 UTC
Probably related to #474966 (which I'm linking). Except in my case the artifact is not thin, does not extend to the bottom, and is visible on the primary (actually, on the only) monitor on a laptop not connected to any external display
Comment 3 Youri 2024-08-26 12:50:42 UTC
(In reply to Michel Lind from comment #0)
> GNOME top left corner with XWaylandVideoBridge installed
> 
> SUMMARY
> On a fully updated Fedora 40 pre-release system, if I have GNOME and KDE
> both installed (first installing Fedora Workstation, then 'sudo dnf
> groupinstall @kde'), a blank window artifact is shown when logging into a
> GNOME session
> 
> STEPS TO REPRODUCE
> 1. Install Fedora Workstation 40 pre-release
> 2. `sudo dnf groupinstall @kde`
> 3. Log into KDE
> 4. Log into GNOME

Same, except for me it was stable/final Fedora Workstation 40 and the white rectangle showed up without me switching to/logging into KDE after the groupinstall, just GNOME, after rebooting I think.

Removing xwaylandvideobridge solved the problem.

More people having this problem, in this bug tracker: 
https://bugzilla.redhat.com/show_bug.cgi?id=2277867