Bug 513824 - Intermittent green screen or crash when switching between graphical user sessions with differing HDR settings (Wayland)
Summary: Intermittent green screen or crash when switching between graphical user sess...
Status: NEEDSINFO BACKTRACE
Alias: None
Product: plasmashell
Classification: Plasma
Component: Session Management (other bugs)
Version First Reported In: 6.5.4
Platform: Arch Linux Linux
: NOR crash
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-12-26 06:06 UTC by Ralph Feltis
Modified: 2026-01-07 02:48 UTC (History)
2 users (show)

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


Attachments
Backtrace with symbols (136.98 KB, text/plain)
2026-01-07 02:48 UTC, Ralph Feltis
Details

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Description Ralph Feltis 2025-12-26 06:06:25 UTC
Description

On KDE Plasma Wayland, switching between two concurrently logged-in graphical KDE user sessions intermittently results in a green screen, compositor crash, or otherwise unstable display state when HDR is enabled in one session and disabled in the other. Sometimes, the crash resets and restricts the display resolution at 640x480 while saying that plasmashell has crashed.

The issue does not occur deterministically. The failure rate is approximately 20% when repeatedly switching between sessions. When both user sessions have matching HDR settings, the issue has not been observed and switching appears stable.

Steps to Reproduce

System running KDE Plasma on Wayland with an NVIDIA GPU.
User A logs into a graphical KDE session and enables HDR:
System Settings → Display and Monitor → HDR → Enabled
User B logs into a graphical KDE session with HDR disabled.
Switch between the two logged-in users using VT switching or fast user switching.
Repeat the switch several times.

Expected Result

Switching between graphical user sessions should be reliable and not cause crashes or display corruption, regardless of per-user HDR configuration.

Actual Result

After several switches (approximately 1 in 5):
Green screen
Compositor or shell crash
Display becomes unusable until logging out or rebooting

Workaround

Configure identical HDR settings for all logged-in user sessions (either enabled for all or disabled for all). With matching HDR state, switching between users appears stable.
Comment 1 TraceyC 2025-12-29 17:56:24 UTC
Thanks for the crash report. As the message at the top of the summary says, if something crashed, we need a backtrace of it so we can figure out what's going on. 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.
Comment 2 Ralph Feltis 2025-12-30 20:47:47 UTC
Here is one output coredumpctl result

Sat 2025-12-20 18:42:22 PST    1605 1000 1000 SIGABRT present   /usr/bin/plasmashell                                                                               20.6M

$ sudo coredumpctl gdb 1605
           PID: 1605 (plasmashell)
           UID: 1000 (stryke)
           GID: 1000 (stryke)
        Signal: 6 (ABRT)
     Timestamp: Sat 2025-12-20 18:42:22 PST (1 week 2 days ago)
  Command Line: /usr/bin/plasmashell --no-respawn
    Executable: /usr/bin/plasmashell
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/plasma-plasmashell.service
          Unit: user@1000.service
     User Unit: plasma-plasmashell.service
         Slice: user-1000.slice
     Owner UID: 1000 (stryke)
       Boot ID: e255c9a71e924b80922588f4d1eb6b9e
    Machine ID: 7a211e483cb044d2b0a073ce88867326
      Hostname: stryketopia
       Storage: /var/lib/systemd/coredump/core.plasmashell.1000.e255c9a71e924b80922588f4d1eb6b9e.1605.1766284942000000.zst (present)
  Size on Disk: 20.6M
       Message: Process 1605 (plasmashell) of user 1000 dumped core.

                Stack trace of thread 1605:
                #0  0x00007fb5a229890c n/a (libc.so.6 + 0x9890c)
                #1  0x00007fb5a223e3a0 raise (libc.so.6 + 0x3e3a0)
                #2  0x00007fb5a57afe57 _ZN6KCrash19defaultCrashHandlerEi (libKF6Crash.so.6 + 0x7e57)
                #3  0x00007fb5a223e4d0 n/a (libc.so.6 + 0x3e4d0)
                #4  0x00007fb5a229890c n/a (libc.so.6 + 0x9890c)
                #5  0x00007fb5a223e3a0 raise (libc.so.6 + 0x3e3a0)
                #6  0x00007fb5a222557a abort (libc.so.6 + 0x2557a)
                #7  0x00007fb5a2a934a4 n/a (libQt6Core.so.6 + 0x934a4)
                #8  0x00007fb5a2a94268 _ZNK14QMessageLogger5fatalEPKcz (libQt6Core.so.6 + 0x94268)
                #9  0x00007fb5781101de n/a (KSC_KWayland.so + 0x71de)
                #10 0x00007fb5a2bd734f n/a (libQt6Core.so.6 + 0x1d734f)
                #11 0x00007fb5a3b11ac6 n/a (libffi.so.8 + 0x7ac6)
                #12 0x00007fb5a3b0e76b n/a (libffi.so.8 + 0x476b)
                #13 0x00007fb5a3b1106e ffi_call (libffi.so.8 + 0x706e)
                #14 0x00007fb5a582948d n/a (libwayland-client.so.0 + 0x448d)
                #15 0x00007fb5a582a2e9 n/a (libwayland-client.so.0 + 0x52e9)
                #16 0x00007fb5a582a6f3 wl_display_dispatch_queue_pending (libwayland-client.so.0 + 0x56f3)
                #17 0x00007fb5a3d630c6 _ZN15QtWaylandClient15QWaylandDisplay13flushRequestsEv (libQt6WaylandClient.so.6 + 0x6c0c6)
                #18 0x00007fb5a2bc4994 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c4994)
                #19 0x00007fb5a4f021c0 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x1021c0)
                #20 0x00007fb5a2b6a958 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x16a958)
                #21 0x00007fb5a2b6ad30 _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x16ad30)
                #22 0x00007fb5a2e4ae18 n/a (libQt6Core.so.6 + 0x44ae18)
                #23 0x00007fb5a171ef8d n/a (libglib-2.0.so.0 + 0x5ef8d)
                #24 0x00007fb5a1720657 n/a (libglib-2.0.so.0 + 0x60657)
                #25 0x00007fb5a1720865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
                #26 0x00007fb5a2e48152 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x448152)
                #27 0x00007fb5a2b75786 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175786)
                #28 0x00007fb5a2b6f3f1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16f3f1)
                #29 0x00005650986e92d9 n/a (/usr/bin/plasmashell + 0x292d9)
                #30 0x00007fb5a2227635 n/a (libc.so.6 + 0x27635)
                #31 0x00007fb5a22276e9 __libc_start_main (libc.so.6 + 0x276e9)
                #32 0x00005650986e9875 n/a (/usr/bin/plasmashell + 0x29875)

                Stack trace of thread 1633:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a2295e9e pthread_cond_wait (libc.so.6 + 0x95e9e)
                #4  0x00007fb5a2d33e69 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333e69)
                #5  0x00007fb5a3d62d49 n/a (libQt6WaylandClient.so.6 + 0x6bd49)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1786:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d4ae __poll (libc.so.6 + 0x10d4ae)
                #4  0x00007fb57020ab6a n/a (libpulse.so.0 + 0x32b6a)
                #5  0x00007fb5701f4661 pa_mainloop_poll (libpulse.so.0 + 0x1c661)
                #6  0x00007fb5701fe793 pa_mainloop_iterate (libpulse.so.0 + 0x26793)
                #7  0x00007fb5701fe861 pa_mainloop_run (libpulse.so.0 + 0x26861)
                #8  0x00007fb57020fd32 n/a (libpulse.so.0 + 0x37d32)
                #9  0x00007fb5701b546f n/a (libpulsecommon-17.0.so + 0x5d46f)
                #10 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #11 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1784:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a231acb5 epoll_wait (libc.so.6 + 0x11acb5)
                #4  0x00007fb569c6dc2a n/a (libspa-support.so + 0x19c2a)
                #5  0x00007fb569c5ac7f n/a (libspa-support.so + 0x6c7f)
                #6  0x00007fb569e3d014 n/a (libpipewire-0.3.so.0 + 0x83014)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1624:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a1720784 n/a (libglib-2.0.so.0 + 0x60784)
                #5  0x00007fb5a1720865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
                #6  0x00007fb5a2e48152 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x448152)
                #7  0x00007fb5a2b75786 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175786)
                #8  0x00007fb5a2c9041e _ZN7QThread4execEv (libQt6Core.so.6 + 0x29041e)
                #9  0x00007fb5a3c6d03e n/a (libQt6DBus.so.6 + 0x3703e)
                #10 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #11 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #12 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1795:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1794:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1796:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1798:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1800:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1799:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1634:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d4ae __poll (libc.so.6 + 0x10d4ae)
                #4  0x00007fb5a3d62db5 n/a (libQt6WaylandClient.so.6 + 0x6bdb5)
                #5  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #6  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #7  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1713:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a1720784 n/a (libglib-2.0.so.0 + 0x60784)
                #5  0x00007fb5a1720865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
                #6  0x00007fb5a2e48152 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x448152)
                #7  0x00007fb5a2b75786 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175786)
                #8  0x00007fb5a2c9041e _ZN7QThread4execEv (libQt6Core.so.6 + 0x29041e)
                #9  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #10 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #11 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1797:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1801:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2022:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a2d26313 _Z12qt_safe_pollP6pollfdm14QDeadlineTimer (libQt6Core.so.6 + 0x326313)
                #5  0x00007fb5a1d680c3 n/a (libQt6Network.so.6 + 0x1460c3)
                #6  0x00007fb5a1ce3520 n/a (libQt6Network.so.6 + 0xc1520)
                #7  0x00007fb5a1cd95ff _ZN15QAbstractSocket16waitForReadyReadEi (libQt6Network.so.6 + 0xb75ff)
                #8  0x00007fb5a24c821a n/a (libKF6KIOCore.so.6 + 0x3e21a)
                #9  0x00007fb5a250f63b n/a (libKF6KIOCore.so.6 + 0x8563b)
                #10 0x00007fb5a259f0ab n/a (libKF6KIOCore.so.6 + 0x1150ab)
                #11 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #12 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #13 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2606:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2605:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a22960a8 pthread_cond_timedwait (libc.so.6 + 0x960a8)
                #4  0x00007fb5a2d33dc5 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt6Core.so.6 + 0x333dc5)
                #5  0x00007fb5a2c8ee69 n/a (libQt6Core.so.6 + 0x28ee69)
                #6  0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2020:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a2d26313 _Z12qt_safe_pollP6pollfdm14QDeadlineTimer (libQt6Core.so.6 + 0x326313)
                #5  0x00007fb5a1d680c3 n/a (libQt6Network.so.6 + 0x1460c3)
                #6  0x00007fb5a1ce3520 n/a (libQt6Network.so.6 + 0xc1520)
                #7  0x00007fb5a1cd95ff _ZN15QAbstractSocket16waitForReadyReadEi (libQt6Network.so.6 + 0xb75ff)
                #8  0x00007fb5a24c821a n/a (libKF6KIOCore.so.6 + 0x3e21a)
                #9  0x00007fb5a250f63b n/a (libKF6KIOCore.so.6 + 0x8563b)
                #10 0x00007fb5a259f0ab n/a (libKF6KIOCore.so.6 + 0x1150ab)
                #11 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #12 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #13 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2932:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a2295e9e pthread_cond_wait (libc.so.6 + 0x95e9e)
                #4  0x00007fb599f7cccc n/a (libEGL_nvidia.so.0 + 0xc1ccc)
                #5  0x00007fb599f48a29 n/a (libEGL_nvidia.so.0 + 0x8da29)
                #6  0x00007fb599f829fe n/a (libEGL_nvidia.so.0 + 0xc79fe)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1806:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a2d26313 _Z12qt_safe_pollP6pollfdm14QDeadlineTimer (libQt6Core.so.6 + 0x326313)
                #5  0x00007fb5a1d680c3 n/a (libQt6Network.so.6 + 0x1460c3)
                #6  0x00007fb5a1ce3520 n/a (libQt6Network.so.6 + 0xc1520)
                #7  0x00007fb5a1cd95ff _ZN15QAbstractSocket16waitForReadyReadEi (libQt6Network.so.6 + 0xb75ff)
                #8  0x00007fb5a24c821a n/a (libKF6KIOCore.so.6 + 0x3e21a)
                #9  0x00007fb5a250f63b n/a (libKF6KIOCore.so.6 + 0x8563b)
                #10 0x00007fb5a259f0ab n/a (libKF6KIOCore.so.6 + 0x1150ab)
                #11 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #12 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #13 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1802:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a1720784 n/a (libglib-2.0.so.0 + 0x60784)
                #5  0x00007fb5a1720865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
                #6  0x00007fb5a2e48152 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x448152)
                #7  0x00007fb5a2b75786 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175786)
                #8  0x00007fb5a2c9041e _ZN7QThread4execEv (libQt6Core.so.6 + 0x29041e)
                #9  0x00007fb569b14cf9 _ZN15KCupsConnection3runEv (libkcups.so + 0x27cf9)
                #10 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #11 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #12 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2923:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a2295e9e pthread_cond_wait (libc.so.6 + 0x95e9e)
                #4  0x00007fb599f7cccc n/a (libEGL_nvidia.so.0 + 0xc1ccc)
                #5  0x00007fb599f48a29 n/a (libEGL_nvidia.so.0 + 0x8da29)
                #6  0x00007fb599f829fe n/a (libEGL_nvidia.so.0 + 0xc79fe)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2023:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a2d26313 _Z12qt_safe_pollP6pollfdm14QDeadlineTimer (libQt6Core.so.6 + 0x326313)
                #5  0x00007fb5a1d680c3 n/a (libQt6Network.so.6 + 0x1460c3)
                #6  0x00007fb5a1ce3520 n/a (libQt6Network.so.6 + 0xc1520)
                #7  0x00007fb5a1cd95ff _ZN15QAbstractSocket16waitForReadyReadEi (libQt6Network.so.6 + 0xb75ff)
                #8  0x00007fb5a24c821a n/a (libKF6KIOCore.so.6 + 0x3e21a)
                #9  0x00007fb5a250f63b n/a (libKF6KIOCore.so.6 + 0x8563b)
                #10 0x00007fb5a259f0ab n/a (libKF6KIOCore.so.6 + 0x1150ab)
                #11 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #12 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #13 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2930:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a2295e9e pthread_cond_wait (libc.so.6 + 0x95e9e)
                #4  0x00007fb599f7cccc n/a (libEGL_nvidia.so.0 + 0xc1ccc)
                #5  0x00007fb599f48a29 n/a (libEGL_nvidia.so.0 + 0x8da29)
                #6  0x00007fb599f829fe n/a (libEGL_nvidia.so.0 + 0xc79fe)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 2931:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22937dc n/a (libc.so.6 + 0x937dc)
                #3  0x00007fb5a2295e9e pthread_cond_wait (libc.so.6 + 0x95e9e)
                #4  0x00007fb599f7cccc n/a (libEGL_nvidia.so.0 + 0xc1ccc)
                #5  0x00007fb599f48a29 n/a (libEGL_nvidia.so.0 + 0x8da29)
                #6  0x00007fb599f829fe n/a (libEGL_nvidia.so.0 + 0xc79fe)
                #7  0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #8  0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)

                Stack trace of thread 1836:
                #0  0x00007fb5a229f002 n/a (libc.so.6 + 0x9f002)
                #1  0x00007fb5a229316c n/a (libc.so.6 + 0x9316c)
                #2  0x00007fb5a22931b4 n/a (libc.so.6 + 0x931b4)
                #3  0x00007fb5a230d9f6 ppoll (libc.so.6 + 0x10d9f6)
                #4  0x00007fb5a2d26313 _Z12qt_safe_pollP6pollfdm14QDeadlineTimer (libQt6Core.so.6 + 0x326313)
                #5  0x00007fb5a1d680c3 n/a (libQt6Network.so.6 + 0x1460c3)
                #6  0x00007fb5a1ce3520 n/a (libQt6Network.so.6 + 0xc1520)
                #7  0x00007fb5a1cd95ff _ZN15QAbstractSocket16waitForReadyReadEi (libQt6Network.so.6 + 0xb75ff)
                #8  0x00007fb5a24c821a n/a (libKF6KIOCore.so.6 + 0x3e21a)
                #9  0x00007fb5a250f63b n/a (libKF6KIOCore.so.6 + 0x8563b)
                #10 0x00007fb5a259f0ab n/a (libKF6KIOCore.so.6 + 0x1150ab)
                #11 0x00007fb5a2d2f899 n/a (libQt6Core.so.6 + 0x32f899)
                #12 0x00007fb5a229698b n/a (libc.so.6 + 0x9698b)
                #13 0x00007fb5a231a9cc n/a (libc.so.6 + 0x11a9cc)
                ELF object binary architecture: AMD x86-64

GNU gdb (GDB) 17.1
Copyright (C) 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.
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Reading symbols from /usr/bin/plasmashell...
(No debugging symbols found in /usr/bin/plasmashell)

⚠️ warning: File /usr/lib/libraw.so.23.0.0 doesn't match build-id from core-file during file-backed mapping processing

⚠️ warning: File /usr/lib/libaom.so.3.13.1 doesn't match build-id from core-file during file-backed mapping processing

⚠️ warning: Can't open file /usr/lib/libjpegxr.so.0.0.0 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libjxrglue.so.0.0.0 during file-backed mapping note processing

⚠️ warning: Can't open file /memfd:JSGCHeap:QtQml (deleted) during file-backed mapping note processing

⚠️ warning: Can't open file /usr/share/fonts/gsfonts/NimbusSans-Regular.otf during file-backed mapping note processing

⚠️ warning: File /usr/lib/libmpg123.so.0.49.4 doesn't match build-id from core-file during file-backed mapping processing

⚠️ warning: Can't open file /memfd:kwin-dmabuf-feedback-table (deleted) during file-backed mapping note processing

⚠️ warning: Can't open file /var/cache/fontconfig/491f45a0a771fef1c10b9b647a97fb82-le64.cache-9 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libnvidia-gpucomp.so.580.119.02 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libnvidia-eglcore.so.580.119.02 during file-backed mapping note processing

⚠️ warning: Can't open file /var/cache/fontconfig/452f1fac34b224105d7acfae3034bcd5-le64.cache-9 during file-backed mapping note processing

⚠️ warning: Can't open file /var/cache/fontconfig/6ba42ae0000f58711b5caaf10d690066-le64.cache-9 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libnvidia-allocator.so.580.119.02 during file-backed mapping note processing

⚠️ warning: File /usr/lib/libX11-xcb.so.1.0.0 doesn't match build-id from core-file during file-backed mapping processing

⚠️ warning: Can't open file /usr/lib/libnvidia-glsi.so.580.119.02 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libEGL_nvidia.so.580.119.02 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libnghttp3.so.9.5.1 during file-backed mapping note processing

⚠️ warning: Can't open file /usr/lib/libharfbuzz.so.0.61220.0 during file-backed mapping note processing

⚠️ warning: File /usr/lib/libX11.so.6.4.0 doesn't match build-id from core-file during file-backed mapping processing
[New LWP 1605]
[New LWP 1633]
[New LWP 1786]
[New LWP 1784]
[New LWP 1624]
[New LWP 1795]
[New LWP 1794]
[New LWP 1796]
[New LWP 1798]
[New LWP 1800]
[New LWP 1799]
[New LWP 1634]
[New LWP 1713]
[New LWP 1797]
[New LWP 1801]
[New LWP 2022]
[New LWP 2606]
[New LWP 2605]
[New LWP 2020]
[New LWP 2932]
[New LWP 1806]
[New LWP 1802]
[New LWP 2923]
[New LWP 2023]
[New LWP 2930]
[New LWP 2931]
[New LWP 1836]

⚠️ warning: Build-id of /usr/lib/libX11.so.6 does not match core file.

⚠️ warning: Build-id of /usr/lib/libharfbuzz.so.0 does not match core file.

⚠️ warning: Build-id of /usr/lib/libnghttp3.so.9 does not match core file.

⚠️ warning: Build-id of /usr/lib/libEGL_nvidia.so.0 does not match core file.

⚠️ warning: Build-id of /usr/lib/libX11-xcb.so.1 does not match core file.

⚠️ warning: Build-id of /usr/lib/libnvidia-allocator.so.1 does not match core file.

⚠️ warning: Build-id of /usr/lib/libmpg123.so.0 does not match core file.

⚠️ warning: Build-id of /usr/lib/libaom.so.3 does not match core file.

⚠️ warning: Build-id of /usr/lib/libraw.so.23 does not match core file.

⚠️ warning: Could not load shared library symbols for 14 libraries, e.g. /usr/lib/libX11.so.6.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
--Type <RET> for more, q to quit, c to continue without paging--c
Core was generated by `/usr/bin/plasmashell --no-respawn'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007fb5a229890c in ?? () from /usr/lib/libc.so.6
[Current thread is 1 (Thread 0x7fb59c043b80 (LWP 1605))]
(gdb) bt
#0  0x00007fb5a229890c in ?? () from /usr/lib/libc.so.6
#1  0x00007fb5a223e3a0 in raise () from /usr/lib/libc.so.6
#2  0x00007fb5a57afe57 in KCrash::defaultCrashHandler(int) () from /usr/lib/libKF6Crash.so.6
#3  <signal handler called>
#4  0x00007fb5a229890c in ?? () from /usr/lib/libc.so.6
#5  0x00007fb5a223e3a0 in raise () from /usr/lib/libc.so.6
#6  0x00007fb5a222557a in abort () from /usr/lib/libc.so.6
#7  0x00007fb5a2a934a4 in ?? () from /usr/lib/libQt6Core.so.6
#8  0x00007fb5a2a94268 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/libQt6Core.so.6
#9  0x00007fb5781101de in ?? () from /usr/lib/qt6/plugins/kf6/kscreen/KSC_KWayland.so
#10 0x00007fb5a2bd734f in ?? () from /usr/lib/libQt6Core.so.6
#11 0x00007fb5a3b11ac6 in ?? () from /usr/lib/libffi.so.8
#12 0x00007fb5a3b0e76b in ?? () from /usr/lib/libffi.so.8
#13 0x00007fb5a3b1106e in ffi_call () from /usr/lib/libffi.so.8
#14 0x00007fb5a582948d in ?? () from /usr/lib/libwayland-client.so.0
#15 0x00007fb5a582a2e9 in ?? () from /usr/lib/libwayland-client.so.0
#16 0x00007fb5a582a6f3 in wl_display_dispatch_queue_pending () from /usr/lib/libwayland-client.so.0
#17 0x00007fb5a3d630c6 in QtWaylandClient::QWaylandDisplay::flushRequests() () from /usr/lib/libQt6WaylandClient.so.6
#18 0x00007fb5a2bc4994 in QObject::event(QEvent*) () from /usr/lib/libQt6Core.so.6
#19 0x00007fb5a4f021c0 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt6Widgets.so.6
#20 0x00007fb5a2b6a958 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt6Core.so.6
#21 0x00007fb5a2b6ad30 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt6Core.so.6
#22 0x00007fb5a2e4ae18 in ?? () from /usr/lib/libQt6Core.so.6
#23 0x00007fb5a171ef8d in ?? () from /usr/lib/libglib-2.0.so.0
#24 0x00007fb5a1720657 in ?? () from /usr/lib/libglib-2.0.so.0
#25 0x00007fb5a1720865 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007fb5a2e48152 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt6Core.so.6
#27 0x00007fb5a2b75786 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt6Core.so.6
#28 0x00007fb5a2b6f3f1 in QCoreApplication::exec() () from /usr/lib/libQt6Core.so.6
#29 0x00005650986e92d9 in ?? ()
#30 0x00007fb5a2227635 in ?? () from /usr/lib/libc.so.6
#31 0x00007fb5a22276e9 in __libc_start_main () from /usr/lib/libc.so.6
#32 0x00005650986e9875 in ?? ()
(gdb)
Comment 3 Ralph Feltis 2025-12-30 20:49:51 UTC Comment hidden (spam)
Comment 4 TraceyC 2026-01-07 00:02:30 UTC
Relevant part of the backtrace

       Message: Process 1605 (plasmashell) of user 1000 dumped core.

                Stack trace of thread 1605:
                #0  0x00007fb5a229890c n/a (libc.so.6 + 0x9890c)
                #1  0x00007fb5a223e3a0 raise (libc.so.6 + 0x3e3a0)
                #2  0x00007fb5a57afe57 _ZN6KCrash19defaultCrashHandlerEi (libKF6Crash.so.6 + 0x7e57)
                #3  0x00007fb5a223e4d0 n/a (libc.so.6 + 0x3e4d0)
                #4  0x00007fb5a229890c n/a (libc.so.6 + 0x9890c)
                #5  0x00007fb5a223e3a0 raise (libc.so.6 + 0x3e3a0)
                #6  0x00007fb5a222557a abort (libc.so.6 + 0x2557a)
                #7  0x00007fb5a2a934a4 n/a (libQt6Core.so.6 + 0x934a4)
                #8  0x00007fb5a2a94268 _ZNK14QMessageLogger5fatalEPKcz (libQt6Core.so.6 + 0x94268)
                #9  0x00007fb5781101de n/a (KSC_KWayland.so + 0x71de)
                #10 0x00007fb5a2bd734f n/a (libQt6Core.so.6 + 0x1d734f)
                #11 0x00007fb5a3b11ac6 n/a (libffi.so.8 + 0x7ac6)
                #12 0x00007fb5a3b0e76b n/a (libffi.so.8 + 0x476b)
                #13 0x00007fb5a3b1106e ffi_call (libffi.so.8 + 0x706e)
                #14 0x00007fb5a582948d n/a (libwayland-client.so.0 + 0x448d)
                #15 0x00007fb5a582a2e9 n/a (libwayland-client.so.0 + 0x52e9)
                #16 0x00007fb5a582a6f3 wl_display_dispatch_queue_pending (libwayland-client.so.0 + 0x56f3)
                #17 0x00007fb5a3d630c6 _ZN15QtWaylandClient15QWaylandDisplay13flushRequestsEv (libQt6WaylandClient.so.6 + 0x6c0c6)
                #18 0x00007fb5a2bc4994 _ZN7QObject5eventEP6QEvent (libQt6Core.so.6 + 0x1c4994)
                #19 0x00007fb5a4f021c0 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt6Widgets.so.6 + 0x1021c0)
                #20 0x00007fb5a2b6a958 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6 + 0x16a958)
                #21 0x00007fb5a2b6ad30 _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt6Core.so.6 + 0x16ad30)
                #22 0x00007fb5a2e4ae18 n/a (libQt6Core.so.6 + 0x44ae18)
                #23 0x00007fb5a171ef8d n/a (libglib-2.0.so.0 + 0x5ef8d)
                #24 0x00007fb5a1720657 n/a (libglib-2.0.so.0 + 0x60657)
                #25 0x00007fb5a1720865 g_main_context_iteration (libglib-2.0.so.0 + 0x60865)
                #26 0x00007fb5a2e48152 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x448152)
                #27 0x00007fb5a2b75786 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x175786)
                #28 0x00007fb5a2b6f3f1 _ZN16QCoreApplication4execEv (libQt6Core.so.6 + 0x16f3f1)
                #29 0x00005650986e92d9 n/a (/usr/bin/plasmashell + 0x292d9)
                #30 0x00007fb5a2227635 n/a (libc.so.6 + 0x27635)
                #31 0x00007fb5a22276e9 __libc_start_main (libc.so.6 + 0x276e9)
                #32 0x00005650986e9875 n/a (/usr/bin/plasmashell + 0x29875)
Comment 5 TraceyC 2026-01-07 00:22:42 UTC
Thanks for replying with the backtraces. Unfortunately, they are incomplete and missing debug symbols for the following lines that we need to figure out exactly what's going wrong:

#7  0x00007fb5a2a934a4 n/a (libQt6Core.so.6 + 0x934a4)
#10 0x00007fb5a2bd734f n/a (libQt6Core.so.6 + 0x1d734f)
#14 0x00007fb5a582948d n/a (libwayland-client.so.0 + 0x448d)
#29 0x00005650986e92d9 n/a (/usr/bin/plasmashell + 0x292d9)


Could you please install debug packages and attach a new symbolicated backtrace generated by using `coredumpctl gdb` in a terminal window? See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl for details about how to do this. Thanks again!
Comment 6 Ralph Feltis 2026-01-07 02:48:13 UTC
Created attachment 188283 [details]
Backtrace with symbols

This is the output of thread apply all bt full