[plasmashell] [Bug 508130] X11 connection broke causing plasmashell and applications to crash on debian 13

[TraceyC]

https://bugs.kde.org/show_bug.cgi?id=508130

TraceyC <kdedev at tlcnet.info> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |1.0
      Version First|25.04.3                     |6.3.6
        Reported In|                            |
          Component|general                     |generic-crash
            Summary|Dolphin crashing my entire  |X11 connection broke
                   |session on debian 13        |causing plasmashell and
                   |                            |applications to crash on
                   |                            |debian 13
           Assignee|dolphin-bugs-null at kde.org   |plasma-bugs at kde.org
            Product|dolphin                     |plasmashell
           Keywords|                            |X11-only

--- Comment #3 from TraceyC <kdedev at tlcnet.info> ---
Thanks for the update. The additional logs are helpful.

Based on the logs you sent and the other crashes seen in your screenshot it
looks like
- The X11 server died
- This caused plasmashell, kwin_x11, Dolphin and other applications to crash
after they couldn't communicate with X11 anymore

X11 vanishing would cause the session to return you to the SDDM screen, as you
experienced.

Interesting entries:
oût 11 21:30:49 deksor-ryzen-pc systemd[2014]:
app-code at 6b65f194739c43db9304d232d569b97c.service: Main process exited,
code=exited, status=1/FAILURE

août 11 21:30:49 deksor-ryzen-pc kwin_x11[379058]: The X11 connection broke:
I/O error (code 1)
août 11 21:30:49 deksor-ryzen-pc kwin_x11[379058]: XIO:  fatal IO error 2
(Aucun fichier ou dossier de ce nom) on X server ":0"
août 11 21:30:49 deksor-ryzen-pc kwin_x11[379058]:       after 4710580 requests
(4710577 known processed) with 0 events remaining.
août 11 21:30:49 deksor-ryzen-pc plasmashell[379108]: The X11 connection broke:
I/O error (code 1)
août 11 21:30:49 deksor-ryzen-pc plasmashell[379108]: XIO:  fatal IO error 2
(Aucun fichier ou dossier de ce nom) on X server ":0"
août 11 21:30:49 deksor-ryzen-pc plasmashell[379108]:       after 84209
requests (68699 known processed) with 0 events remaining.

What would be useful is to see if there are coredumps on your system for
`systemd-coredump`  which may contain more information about the X11 crash. If
there is one, can you please attach a backtrace of the crash using the
coredumpctl command-line program, as detailed in
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl
?

Thanks!

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