Bug 515278 - Plasma crashes when selecting “Concentric Circles” display style in Memory Usage widget on Wayland.
Summary: Plasma crashes when selecting “Concentric Circles” display style in Memory Us...
Status: RESOLVED DUPLICATE of bug 508043
Alias: None
Product: plasmashell
Classification: Plasma
Component: System Monitor widgets (other bugs)
Version First Reported In: master
Platform: Other Linux
: NOR crash
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-01-29 22:20 UTC by Nik
Modified: 2026-01-29 23:29 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
Backtrace of plasmashell crash after selecting "Concentric Circles" display style in Memory Usage widget. (107.35 KB, text/plain)
2026-01-29 22:20 UTC, Nik
Details

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Description Nik 2026-01-29 22:20:10 UTC
Created attachment 189042 [details]
Backtrace of plasmashell crash after selecting "Concentric Circles" display style in Memory Usage widget.

DESCRIPTION

On openSUSE Tumbleweed with KDE Plasma 6 running on Wayland, selecting the “Concentric Circles” display style in the Memory Usage widget causes Plasma Desktop to crash.
In addition, when this display style is selected, the “Total sensors” section incorrectly allows only a single selection, unlike other display styles where multiple sensors can be selected.

The issue does not occur on openSUSE Leap 16 with the same widget, suggesting a Plasma 6 / Wayland / Qt 6 regression or compatibility issue.

SUMMARY

Plasma crashes when selecting “Concentric Circles” display style in Memory Usage widget on Wayland; additionally, “Total sensors” becomes incorrectly single-select only for this display style.

STEPS TO REPRODUCE

1. Log in to a KDE Plasma 6 Wayland session.
2. Add the Memory Usage widget to the desktop or panel.
3. Open the widget configuration.
4. Under Display Style, select Concentric Circles.
5. (Optional but relevant) Navigate to Total sensors and attempt to select multiple sensors. 

OBSERVED RESULT

Plasmashell crashes immediately after selecting the “Concentric Circles” display style.
The desktop session restarts automatically.  Total sensors selection does not permit more than one selection, which othre display styles do.

EXPECTED RESULT

1. Selecting Concentric Circles should not crash Plasma Desktop.
2. The Total sensors section should allow multiple selections, consistent with other display styles.
3. Widget behaviour should be consistent across display styles.

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: openSUSE Tumbleweed 20260126
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.7-1-default (64-bit)
Graphics Platform: Wayland (XWayland enabled)
Graphics Processor: Intel® Iris® Xe Graphics

ADDITIONAL INFORMATION

The same widget and configuration does not crash Plasma on openSUSE Leap 16.
Issue appears specific to Plasma 6 + Wayland.
Likely related to QML / model handling differences in the “Concentric Circles” display style.
Comment 1 cwo 2026-01-29 22:50:38 UTC
Thank you for the bug report! This issue is already being tracked in another report, so I'm merging the two.

*** This bug has been marked as a duplicate of bug 508043 ***
Comment 2 Nik 2026-01-29 23:29:33 UTC
(In reply to cwo from comment #1)
> Thank you for the bug report! This issue is already being tracked in another
> report, so I'm merging the two.
> 
> *** This bug has been marked as a duplicate of bug 508043 ***

Thanks for merging, I’ll follow bug 508043 for updates.