https://bugs.kde.org/show_bug.cgi?id=422277
Bug ID: 422277
Summary: 100% cpu usage and desktop crash if you plaice a
certain combination of plasmoid widgets
Product: kdeplasma-addons
Version: 5.18.5
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: grave
Priority: NOR
Component: systemloadviewer
Assignee: plasma-b...@kde.org
Reporter: brunoguedes.n...@gmail.com
Target Milestone: ---
SUMMARY
This bug happens if you use the grouping plasmoid widget to group the 'system
load viwer' plasmoid widget with the 'calculator' plasmoid widget and you
restart the computer.
STEPS TO REPRODUCE
1. add the grouping plasmoid widget to the desktop
2. put the system load viwer plasmoid widget inside of it
3. then put the calculator plasmoid widget inside of it as well
4. click the system load viewer tab so that it is the plasmoid widget that is
shown when the pc restarts.
5. restart the pc.
OBSERVED RESULT
The entire desktop freezes. You will not be able to invoke the desktop menu by
right clicking and all other plasmoids that you might have on your desktop will
freeze as well.
This includes the plasma panel and the plasmoids in it.
You will still be able to open konsole using the keyboard shortcut(ctrl + alt +
t) and, sometimes, krunner works(not always and when it do, it is glitchy).
When I checked ksysguard 1 of my cpu threads was at 100% and its would not go
down with time.
I could revert the freezing by removing the system load viwer plasmoid widget
from the grouping widget. Even though it was not a simple task since it would
freeze quite quickly and, once it freezes, you cannot remove the widget
anymore.
EXPECTED RESULT
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: manjaro linux
(available in About System)
KDE Plasma Version: 5.18.5 and the git package in the manjaro repos (could
reproduce in both)
KDE Frameworks Version: 5.70.0 nd the git package in the manjaro repos (could
reproduce in both)
Qt Version: 5.14.2
ADDITIONAL INFORMATION
Sorry if the report is not very clear. English is not my first language and I
am writing this late at night(tired). If you need more info I can try to make a
video from my cellphone reproducing the bug.
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