Bug 444150

Summary:	Widgets for resource monitoring do not show percentage in line charts
Product:	[Plasma] plasmashell	Reporter:	David <david.cortes.rivera>
Component:	System Monitor widgets	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	ahiemstra, ihated2, nate, notmart
Priority:	NOR	Keywords:	usability
Version First Reported In:	5.23.1
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description David 2021-10-20 20:42:57 UTC

SUMMARY
If I set the total CPU usage to display a line chart, it will not display the usage percent on top of that chart like such a setting would do in the resources monitor app.

STEPS TO REPRODUCE
1. Add the "Total CPU usage" widget to a panel.
2. Right click it, select "Configure system monitor sensor" -> "Appearance" -> "Display style" -> "Line chart".
3. Watch the widget.

OBSERVED RESULT
Displays a line chart, but no percentage numbers on top.

EXPECTED RESULT
Should display a line chart with percentage numbers on top.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20210725
KDE Plasma Version: 5.22.3
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Kernel Version: 5.13.4-1-default (64-bit)
Graphics Platform: X11
Processors: 4 × AMD Ryzen 7 2700 Eight-Core Processor
Memory: 3.8 GiB of RAM
Graphics Processor: llvmpipe

ADDITIONAL INFORMATION

Comment 1 Nate Graham 2024-02-22 20:12:24 UTC

Can confirm. The "Show Sensors Legend" checkbox is checked on the "Line Chart Details" page, but it doesn't seem to be having the effect of showing a legend that I would expect.

Comment 2 DarkThoughts 2025-07-04 12:32:46 UTC

In my experience the Appearance settings for this type of widget do not seem to update properly. I can enable / disable them all and nothing changes when I apply. You can force an update by checking / unchecking the Y data ranges box (it may have to be different than the standard values, not sure).

Unfortunately there's still a lot of typical KDE jank / small bugs regarding widgets.