https://bugs.kde.org/show_bug.cgi?id=519923
Bug ID: 519923
Summary: returning from simple math in overview crashes
desktop, some apps, but not all. Desktop recovers and
remains usable.
Classification: Plasma
Product: krunner
Version First 6.6.4
Reported In:
Platform: Manjaro
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: calculator
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
DESCRIPTION
Using the Overview search to perform a simple calculator expression (e.g.,
2026-17) and then exiting the search - by pressing Esc, Super, clicking the
result, or clearing the search - causes Plasma to crash and restart. Multiple,
but not all, running applications are terminated, while Plasma itself recovers.
This issue is reliably reproducible and appears isolated to the calculator
integration used by KRunner inside the Overview effect.
The system is running a 3‑monitor configuration, and all screens briefly go
black during the crash.
My original reaction was to toot about it, see my thread
https://layer8.space/@platymew/116528146718771455. Later someone suggested, i'd
file a proper bug report, this one here. I didn't feel the need to reboot the
box since encountering those crashes, 2-ish days ago. Let me know if you
really-really need additional logs or debug traces, because i'm reluctant to
crash it intentionally, while i've got all this precious state accumulated in
memory - the box is "warm" and currently being used for important tasks.
STEPS TO REPRODUCE
1. Press Super to open the Overview effect (spanning 3 monitors). I think,
that's the default setting for those hot corners.
2. Type a simple calculator expression, e.g. 2026-17.
3. Trigger any of the following: Press Esc, Super again, Click the calculator
result, or Click the “clear search” (backspace) icon. I have not tried the hot
corner trigger, yet.
4. Plasma freezes momentarily, all three monitors go black, and the session
restarts.
OBSERVED RESULT
Calculator expressions evaluate normally.
Plasma momentarily crashes and restarts.
All three monitors go black during the crash.
Several applications are terminated, including: Firefox, Chromium, Thunderbird,
GNUcash, Steam (native), Terminator, virt‑manager window (VMs remain running)
Other applications remain unaffected (e.g., Dolphin, Kate, Clock, Nextcloud
tray).
The desktop recovers and remains stable otherwise.
EXPECTED RESULT
Exiting the Overview search should not crash the Plasma session.
Running applications should remain unaffected.
Multi‑monitor setups should behave identically to single‑monitor setups.
SOFTWARE/OS VERSIONS
Operating System (available in the Info Center app, or by running `kinfo` in a
terminal window): Manjaro
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.25.0
Qt Version: 6.11.0
Graphics Platform: Wayland, 3 monitors
ADDITIONAL INFORMATION
The issue is not an OOM event (system has 64 GB RAM, and htop reports a 3rd in
apps + a 3rd in caches).
Non‑calculator search terms behave normally.
Pressing Enter to “run” the calculator result does nothing (possibly a separate
bug) - i expected it to open the expression in the calculator app.
Strongly suggests a bug in the KRunner Calculator Runner when used inside the
Overview effect.
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