System Monitor Taskbar Widget (GNOME + KDE Plasma)

Compact taskbar/panel readout: CPU %/temp, RAM, GPU %/temp (D/A/I), disk and network rates, and power (RAPL / GPU drivers / power_supply where available). No load-based power guesses: missing data shows as --W.

Install (GNOME / Ubuntu-style)

git clone https://github.com/hyperionsolitude/Ubuntu_System_Monitor_Taskbar_Widget.git
cd Ubuntu_System_Monitor_Taskbar_Widget
./install.sh

Install (CachyOS / Arch, KDE Plasma 6)

git clone https://github.com/hyperionsolitude/Ubuntu_System_Monitor_Taskbar_Widget.git
cd Ubuntu_System_Monitor_Taskbar_Widget
./install_kde_plasmoid.sh

The KDE installer registers the plasmoid, restarts plasmashell, and installs contrib/99-intel-rapl-energy-read.rules when possible so non-root users can read CPU RAPL (intel-rapl in sysfs applies to AMD Ryzen as well). If CPU power still shows --W, reboot once or run the udevadm lines in that rules file.

Then: panel → Add Widgets → System Monitor Taskbar (Centered) → place in the panel (spacers help center it).

KDE plasmoid tuning

Environment variables (optional):

Variable	Default	Role
KDE_SYSMON_CPU_POWER_MULTIPLIER	1.0	Scale CPU W
KDE_SYSMON_GPU_POWER_MULTIPLIER	1.0	Scale GPU W
KDE_SYSMON_RATE_SAMPLE_SECONDS	0.30	Disk/net sample window

GNOME tray service

systemctl --user status system-tray-monitor.service
systemctl --user restart system-tray-monitor.service
systemctl --user disable --now system-tray-monitor.service

Uninstall: ./uninstall.sh (GNOME) or ./uninstall_kde_plasmoid.sh (KDE).

Requirements

install.sh pulls distro packages (GTK, AppIndicator, python3-psutil, sensors, and GPU helpers such as radeontop / intel-gpu-tools depending on lspci). install_kde_plasmoid.sh uses pacman for python, python-psutil, and plasma-workspace.

If CPU temperature is missing: sudo modprobe coretemp (Intel) or ensure k10temp is loaded (AMD).

License

MIT. See LICENSE.