SysMonKubu

Real-time system monitor widget for KDE Plasma 6

SysMonKubu is a lightweight Plasma applet that displays real-time system resource usage directly in your panel. It shows CPU, GPU, RAM, and disk usage at a glance with color-coded bars and labels.

Features

• Real-time monitoring - Updates every 2 seconds
• Multi-GPU support - Works with NVIDIA, AMD, and Intel graphics
• Color-coded display - Green (CPU), Pink (GPU), Blue (RAM), Orange (Disk)
• Compact design - Minimal footprint on your panel
• Open source - Free and transparent

Requirements

• KDE Plasma 6.x
• Linux with /proc filesystem
• Optional: nvidia-smi for NVIDIA GPU monitoring

Installation

From KDE Store (recommended)

1. Open System Settings → Plasma Widgets
2. Search for "SysMonKubu"
3. Click Install

Manual Installation

# Copy to local plasmoids directory
cp -r SysMonKubu ~/.local/share/plasma/plasmoids/

# Rebuild Plasma cache
kbuildsycoca6

# Restart Plasma (optional)
systemctl --user restart plasma-plasmashell

Add to Panel

1. Right-click on your panel
2. Select Add Widgets
3. Search for "SysMonKubu"
4. Drag it to your panel

Usage

The widget displays four metrics in your panel:

Color	Metric	Description
🟢 Green	CPU	Processor usage percentage
🩷 Pink	GPU	Graphics card usage percentage
🔵 Blue	RAM	Memory usage percentage
🟠 Orange	DISK	Root partition usage

Click on the widget to see more details in the popup.

Building from Source

# Create package archive
tar -czf SysMonKubu.plasmoid --transform 's,^\./,,' .

# Install locally
kpackagetool6 --type Plasma/Applet --install SysMonKubu.plasmoid

Supported GPUs

• NVIDIA - Uses nvidia-smi
• AMD - Reads from /sys/class/drm/card*/device/gpu_busy_percent
• Intel - Reads from /sys/class/drm/card*/device/gpu_busy_percent
• Others - Displays 0%

Configuration

Edit contents/scripts/monitor.sh to customize:

• Update interval (default: 2 seconds)
• Disk partition to monitor
• Additional metrics

Troubleshooting

Widget not appearing

kbuildsycoca6
systemctl --user restart plasma-plasmashell

GPU shows 0%

• Ensure nvidia-smi is installed for NVIDIA cards
• AMD/Intel GPUs require kernel support for gpu_busy_percent

Permission errors

The script reads system files that require read permissions. Most users won't encounter issues.

License

GPLv3 - See LICENSE file for details.

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Made with ❤️ by Dario Chiapperini

• Website: dariochiapperini.dev
• GitHub: @darchidev
• KDE Store: SysMonKubu

_{SysMonKubu © 2026 Dario Chiapperini}