https://bugs.kde.org/show_bug.cgi?id=422739
Bug ID: 422739
Summary: Applet dies and reloads infinitely after unplugging
ethernet cable
Product: plasma-nm
Version: 5.19.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jgrul...@redhat.com
Reporter: magib...@hotmail.com
Target Milestone: ---
SUMMARY
Sometimes, when I unplug my ethernet cable, the plasma-nm applet in the system
tray disappears and then tries to load again in an infinite loop.
Today I noticed plasmashell was logging the following for every load attempt:
> qrc:/plasma/plasmoids/org.kde.plasma.networkmanagement/contents/ui/main.qml:82:
> TypeError: Cannot read property 'expanded' of null
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/BusyIndicatorStyle.qml:39:9:
> QML Connections: Implicitly defined onFoo properties in Connections are
> deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
In htop I can see a NetworkManager process being created and destroyed at the
same rate as the applet. However, there are no signs of NetworkManager
crashing, according to coredumpctl.
The only way to break the infinite loop is to run NetworkManager from the
console. In particular, I run:
> sudo NetworkManager --no-daemon
After a few attempts (the command usually exits, probably due to there already
being another NetworkManager process alive), NetworkManager stays running and
so does the applet.
I wonder if there is something wrong with my system or the downstream software,
since the applet keeps on trying to reach internet through the Ethernet port,
which is listed as active even in ifconfig but is actually unplugged. I can
overcome this by suspending and resuming the laptop.
Still, I find the scripting error at main.qml:82 very suspicious.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.19.0
KDE Frameworks Version: 5.70.0
Qt Version: 5.15.0
Kernel Version: 5.6.15-arch1-1
OS Type: 64-bit
ADDITIONAL INFORMATION
This was already an issue in older versions of Plasma and Qt for at least the
last four months.
In my system there is no main.qml, but main.qmlc. If there is a way to
use/compile a custom main.qml, please let me know.
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