https://bugs.kde.org/show_bug.cgi?id=409197
Bug ID: 409197
Summary: Plasmashell takes 50% of the CPU when it can't connect
to the Wifi
Product: knemo
Version: unspecified
Platform: unspecified
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jst...@mehercule.net
Reporter: bio...@gmail.com
Target Milestone: ---
Created attachment 121150
--> https://bugs.kde.org/attachment.cgi?id=121150&action=edit
Wifi trying to connect uses a stable 49% CPU
SUMMARY
The process plasmashell will will take up to 50% of the CPU when the Wifi
network won't connect. It takes either 25% or 50% and it is a stable
utilization as if the process went out of control.
STEPS TO REPRODUCE
The bug is always reproducible: when the Wifi is activate it will start
consuming CPU, as soon as I deactivate it, the utilization will go down to
0-2%.
1. Activate Wifi.
1. Find a Wifi connection that won't connect: a connection that will
successfully authenticate the user but will not go beyond "applying networks
address" phase.
2. Try to connect to that network without any other alternative available. If
there are no alternatives the process will go timeout and keep trying to
connect to the same network.
OBSERVED RESULT
Watch CPU utilization jump up and fans start spinning like crazy.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 19.04
KDE Plasma Version: 5.16.1
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.2
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