Tooltips for Line Charts in System Graphs

Apr 11, 2026 min read

I found an old bugreport about the lack of tooltips for line charts in plasms-systemmonitor and thought this would be a cool thing to have. Using Grafana extensively at work this seemed like something useful to me so I took a shot at it.

This work involved changes in kquickcharts and libksysguard. The nice thing about it is that those changes are not only visible in plasma-systemmonitor but also for example in all system monitor widgets.

Tooltips for Line Charts in System Monitor

Tooltips for line charts in plasma-systemmonitor

Tooltips for Line Charts in System Monitor Widget

Tooltips for line charts in system monitor widget