Plasma system monitor sensor widget fails to load sensors after reboot

[Wayne Schroeder]

This may be raspberry pi specific. When selecting system sensors for a line graph such as core temperature or core frequencies, upon reboot/login the sensors do not register until you open the configuration for the widget and at least open the sensors detail tab. Additionally, this tab is extremely slow the first time you click it (and after reboot). If you have two of these widgets going that have missing sensor data, the act of going into the details and enduring the slowness will make both of the widgets work on the next log-in. It is my assumption that it is doing something system wide like creating devices or loading modules directory or indirectly, but whatever the reason, after one widget config visits the sensors detail tab, they all work immediately after successive logout/login.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: plasma-workspace 4:5.19.5-0ubuntu2
ProcVersionSignature: Ubuntu 5.8.0-1010.13-raspi 5.8.17
Uname: Linux 5.8.0-1010-raspi aarch64
ApportVersion: 2.20.11-0ubuntu50.3
Architecture: arm64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Wed Dec 16 15:47:00 2020
ExecutablePath: /usr/bin/plasmashell
ImageMediaBuild: 20201022
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: plasma-workspace
UpgradeStatus: No upgrade log present (probably fresh install)
XsessionErrors:
 (tracker-miner-fs:2024): Tracker-CRITICAL **: 09:43:02.257: Could not request DBus name 'org.freedesktop.Tracker1.Miner.Files': D-Bus service name:'org.freedesktop.Tracker1.Miner.Files' is already taken, perhaps the application is already running?
 (tracker-extract:2020): Tracker-CRITICAL **: 09:43:03.035: Could not request DBus name 'org.freedesktop.Tracker1.Miner.Extract': D-Bus service name:'org.freedesktop.Tracker1.Miner.Extract' is already taken, perhaps the application is already running?
 (tracker-miner-fs:1687): Tracker-CRITICAL **: 12:28:50.140: Could not request DBus name 'org.freedesktop.Tracker1.Miner.Files': D-Bus service name:'org.freedesktop.Tracker1.Miner.Files' is already taken, perhaps the application is already running?
 (tracker-extract:1690): Tracker-CRITICAL **: 12:28:51.743: Could not request DBus name 'org.freedesktop.Tracker1.Miner.Extract': D-Bus service name:'org.freedesktop.Tracker1.Miner.Extract' is already taken, perhaps the application is already running?

[Scarlett Gately Moore (scarlettmoore)]

This bug is very old, if it is still an issue please update the bug with info from a supported release.