USB network devices or VirtualBox bridges are just temporarily up and active in the system. The Network Monitor Widget automatically adds such interfaces when such devices get connected. Unfortunately it does not remove them when disconnected. This patch tries to implement also the removal and works in current Debian testing/buster. But it touches the common file Applet.qml, so it may have unwanted side effects to other widgets in its current state. Betriebssystem: Debian GNU/Linux KDE-Plasma-Version: 5.14.5 Qt-Version: 5.11.3 KDE-Frameworks-Version: 5.54.0 Kernel-Version: 4.19.0-4-amd64 Art des Betriebssystems: 64-bit Prozessoren: 16 × AMD Ryzen 7 1700 Eight-Core Processor Speicher: 15,5 GiB Arbeitsspeicher The bug tracker mentioned to open a proposed change in phabricator, so I did here: https://phabricator.kde.org/D21035
This is fixed in the new System Monitor widgets.