SUMMARY Selecting the "Mobile broadband" entry in the settings application, or starting it directly with systemsettings5 mobilebroadbandsettings results in 100% CPU on one core, and no output/display is generated. STEPS TO REPRODUCE 1. systemsettings5 mobilebroadbandsettings OBSERVED RESULT The same set of error messages is shown repeatedly (until interrupted): file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/PageRow.qml:591:5: QML ColumnView: possible QQuickItem::polish() loop file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/PageRow.qml:591:5: QML ColumnView: ColumnView called polish() inside updatePolish() of ColumnView Nothing is displayed EXPECTED RESULT Display of mobile settings, or a warning that this is not supported on the current device. SOFTWARE/OS VERSIONS Operating System: Debian GNU/Linux KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2 Kernel Version: 5.10.7 OS Type: 64-bit ADDITIONAL INFORMATION I tried it on two computers, one laptop and one desktop, both not having a WWAN interface. I expected an empty display, or a comment no WWAN available, but nothing was displayed.
I forgot to mention (but this is somehow implied), that plasma-nm was compiled with -DBUILD_MOBILE=true
The Mobile Broadband KCM has been removed in https://invent.kde.org/plasma/plasma-nm/-/commit/177a2641a0f9655d26042ed1c38865aea048ce94
Bulk transfer as requested in T17796