[Bug 1905079] [NEW] Plasmashell consumes 100% CPU when animation is running

Jan Rheinländer 1905079 at bugs.launchpad.net
Fri Nov 20 19:38:07 UTC 2020

Public bug reported:

For at least two types of animation, plasmashell consumes 100% CPU:
1. Connecting to the WLAN
2. Downloading in Firefox (plasma integration is installed)

Both actions result in a spinning icon in the taskbar. It is also
noticeable that the spinning is crazily fast.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: plasma-workspace 4:5.18.5-0ubuntu0.1
ProcVersionSignature: Ubuntu 5.4.0-51.56-generic 5.4.65
Uname: Linux 5.4.0-51-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Fri Nov 20 20:34:55 2020
InstallationDate: Installed on 2020-10-12 (39 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
SourcePackage: plasma-workspace
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: plasma-workspace (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug focal third-party-packages

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  Plasmashell consumes 100% CPU when animation is running

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