Bug 459087

Summary: The default panel is slow and laggy under Wayland
Product: [Plasma] plasmashell Reporter: flash <devesh.genius007>
Component: PanelAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: normal CC: dev.bacteriostat, kde, niccolo.venerandi
Priority: NOR Keywords: wayland
Version: 5.25.5   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:

Description flash 2022-09-14 06:03:37 UTC
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. Switch virtual desktops
2. Click on hidden systray icon
3. Click on launcher

OBSERVED RESULT
1. Notice that the panel takes longer time to update itself to show the running and closed apps
2. It takes longer for the blue "line" above the systray icon to come and go
3. It takes longer for the blue "line" above the launcher icon to come and go
EXPECTED RESULT
1. It should reflect the changes faster

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
(available in About System)
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6

ADDITIONAL INFORMATION
Comment 1 David Edmundson 2022-09-14 09:26:04 UTC
There isn't enough information there to act upon. I have not noticed such issues.

Can you confirm if setting the render loop to basic changes things (kcmshell5 qtquicksettings)

Is CPU spiked? If so can you grab a trace with hotspot.
Comment 2 Bacteria 2022-09-14 11:44:26 UTC

*** This bug has been marked as a duplicate of bug 454379 ***