Bug 486954 - Discarding changes to the SDDM KCM causes reproducible crash.
Summary: Discarding changes to the SDDM KCM causes reproducible crash.
Status: REPORTED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_sddm (show other bugs)
Version: 6.0.4
Platform: Fedora RPMs Linux
: NOR crash
Target Milestone: ---
Assignee: Plasma Bugs List
URL: https://bugzilla.redhat.com/show_bug....
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-13 11:53 UTC by Roke Julian Lockhart Beedell
Modified: 2025-01-23 23:03 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:
4wy78uwh: performance-

Attachments
Depiction of the problem. (2.02 MB, video/x-matroska)
2024-05-13 12:18 UTC, Roke Julian Lockhart Beedell 		Details
GDB log. (60.39 KB, text/markdown)
2024-05-13 12:38 UTC, Roke Julian Lockhart Beedell 		Details
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Description Roke Julian Lockhart Beedell 2024-05-13 11:53:03 UTC 
SUMMARY
Discarding changes to the SDDM KCM causes reproducible crash.

STEPS TO REPRODUCE
1.  Invoke `kcmchell6 kcm_sddm`.
2.  Enter the "Behaviour" page.
3.  Modify the auto-login functionality (as an example).
4.  Discard modifications.

OBSERVED RESULT
Crash.

EXPECTED RESULT
The modifications should be discarded.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 40
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
Kernel Version: 6.8.9-300.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
Memory: 30.5 GiB of RAM
Graphics Processor: AMD Radeon RX 5700
Manufacturer: ASRock
Product Name: X670E Taichi

ADDITIONAL INFORMATION
https://bugzilla.redhat.com/show_bug.cgi?id=2272193#c12
Comment 1 Roke Julian Lockhart Beedell 2024-05-13 12:18:36 UTC 
Created attachment 169436 [details]
Depiction of the problem.
Comment 2 Roke Julian Lockhart Beedell 2024-05-13 12:38:39 UTC 
Created attachment 169437 [details]
GDB log.

https://wim.nl.tab.digital/s/95qaqGtxPfaDbFA
Comment 3 Roke Julian Lockhart Beedell 2025-01-23 23:03:47 UTC 
(In reply to Roke Julian Lockhart Beedell from comment #2)

It doesn't appear to crash anymore, and the general weirdness regarding inability to save and configurations reverting that I used to experience in that KCM also appear to be gone:

> ~~~YAML
> Operating System: Fedora Linux 41
> KDE Plasma Version: 6.2.5
> KDE Frameworks Version: 6.10.0
> Qt Version: 6.8.1
> Kernel Version: 6.12.9-200.fc41.x86_64 (64-bit)
> Graphics Platform: Wayland
> Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
> Memory: 30.4 GiB of RAM
> Graphics Processor: AMD Radeon RX 5700
> Manufacturer: ASRock
> Product Name: X670E Taichi
> ~~~

Worth closing as WORKSFORME, or should the trace be looked at first? I'm in no rush.