https://bugs.kde.org/show_bug.cgi?id=401741
Bug ID: 401741
Summary: Icons-only Task Manager High CPU when switching Users
Product: plasmashell
Version: 5.12.7
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Icons-only Task Manager
Assignee: h...@kde.org
Reporter: r...@acemail.org
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
Switching back to a user with Icon-only Task manager causes panel and widgets
to become unresponsive for 2-5 mins.
STEPS TO REPRODUCE
1. Setup icons-only task manager for user1
2. Switch users to user2 but keep user1 logged in
3. Wait a while (up to 30 mins)
4. Switch back to user1
OBSERVED RESULT
When switching back to User1, plasmashell CPU usage hits 100% and all panels
and widgets become unresponsive for 2-5 mins. Forced restart of plasmashell
fixes problem.
EXPECTED RESULT
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
Kubuntu 18.04
Kernel: 4.15.0-39-generic
CPU: Intel Core i7-4770
GPU: Radeon RX 550 (open drivers)
KDE Plasma Version: 5.12.7
KDE Frameworks Version: 5.44.0
Qt Version: 5.9.5
ADDITIONAL INFORMATION
Tried turning off compositing but made no difference. Only way to fix this is
to remove icons-only task manager and issue stops. Forced restart of
plasmashell also fixes problem.
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