https://bugs.kde.org/show_bug.cgi?id=477855
Bug ID: 477855
Summary: Plasmashell consumes CPU time doing nothing
Classification: Plasma
Product: plasmashell
Version: 5.27.9
Platform: Other
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Panel
Assignee: plasma-b...@kde.org
Reporter: stefan.bru...@rwth-aachen.de
CC: niccolo.venera...@gmail.com
Target Milestone: 1.0
SUMMARY
After plasmashell has started, it is consuming CPU time doing apparently
nothing.
According to strace, it is woken up due to a ~16ms ppoll timeout. This is
likely some animation which has not been stopped correctly.
The polling stops as soon as the "Status and Notification" popup is opened the
first time, afterwards the process is completely idle.
STEPS TO REPRODUCE
1. Start plasmashell (as part of the session, or with --restart, does not
matter)
2. Attach strace to the main thread
3. Open the popup using the ^ up arrow
OBSERVED RESULT
Plasmashell consumes CPU time doing nothing, and behaves correctly after
opening the popup once.
EXPECTED RESULT
Plasmashell becomes idle immediately after start, without user intervention.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.112
Qt Version: 5.15.11
ADDITIONAL INFORMATION
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