SUMMARY While testing another bug report, I had logged into an X11 session on 6.1.4 after an X11 dev/6.2 session Related? After setting the SDDM settings, clicking Apply and then OK, System Settings crashed. I can't reproduce that crash without xpad installed. I had an external monitor connected to the laptop via HDMI, and unplugged it I noticed a small rectangular area in the upper left hand corner of the wallpaper was corrupt. This area overlapped the icons on the desktop. I discovered it was the xpad window area, after observing this in relog / reboots I clicked Leave - Logout from the kickoff menu Plasmashell crashed, leaving a black background and mouse cursor. There was also a small yellow rectangle where the wallpaper corruption had been, which looked like it was the xPad window. (I left this for a couple of minutes to make sure it wasn't just being slow) I got to TTY and saw there was a new coredump STEPS TO REPRODUCE This is the minimal setup I can reproduce the crash with Settings: - SDDM set to automatically log in as my user with session Plasma (X11) (not set to auto login at logoff) - xpad installed, default settings 1. Logged into X11 6.1.4 session 2. Kickoff - Leave - Logout OBSERVED RESULT Black screen with a cursor, and a square filled with the wallpaper, where the xpad window was Logut hangs, crash dump logged EXPECTED RESULT User is logged out normally SOFTWARE/OS VERSIONS Linux/KDE Plasma: Solus KDE Plasma Version: 6.1.4 KDE Frameworks Version: 6.5.0 Qt Version: 6.7.2 Graphics: X11 ADDITIONAL INFORMATION When xpad is installed, it will pop up a window at login I wasn't able to make the crash happen using Logout from the Logout/Lock applet in the panel, only with Leave - Logout After removing xpad via `eopkg rm xpad`, it couldn't be closed via right click icon in panel - close. It stayed in the panel, and there was a black blank box where its window should be. This did allow logging out to be successful, however. Backtrace [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib64/libthread_db.so.1". Core was generated by `/usr/bin/plasmashell --no-respawn'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f529d0ab84b in pthread_kill () from /usr/lib/glibc-hwcaps/x86-64-v3/libc.so.6 [Current thread is 1 (Thread 0x7f529740e480 (LWP 989))] (gdb) (gdb) c The program is not being run. (gdb) backtrace #0 0x00007f529d0ab84b in pthread_kill () at /usr/lib/glibc-hwcaps/x86-64-v3/libc.so.6 #1 0x00007f529d051296 in raise () at /usr/lib/glibc-hwcaps/x86-64-v3/libc.so.6 #2 0x00007f52a0230e34 in KCrash::defaultCrashHandler(int) () at /usr/lib/libKF6Crash.so.6 #3 0x00007f529d051340 in <signal handler called> () at /usr/lib/glibc-hwcaps/x86-64-v3/libc.so.6 #4 ShellCorona::panelContainmentDestroyed (this=0x55cd3d20d9a0, obj=<optimized out>) at /home/build/YPKG/root/plasma-workspace/build/plasma-workspace-6.1.4/shell/shellcorona.cpp:1570 #5 0x00007f529d953268 in QtPrivate::QSlotObjectBase::call (this=0x55cd3fbadb80, r=0x55cd3d20d9a0, a=0x7ffcea67a580) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobjectdefs_impl.h:469 #6 doActivate<false> (sender=0x55cd3d7ad810, signal_index=0, argv=0x7ffcea67a580) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4086 #7 0x00007f529d9461f2 in QMetaObject::activate (sender=0x55cd3d7ad810, local_signal_index=0, argv=0x7ffcea67a580, m=<optimized out>) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4146 #8 QObject::destroyed (this=0x55cd3d7ad810, _t1=0x55cd3d7ad810) at src/corelib/kernel/moc_qobject.cpp:229 #9 QObject::~QObject (this=0x55cd3d7ad810) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:1074 #10 0x00007f52a00b4e57 in Plasma::Applet::~Applet() () at /usr/lib/libPlasma.so.6 #11 0x00007f52a00bd9bf in Plasma::Containment::~Containment() () at /usr/lib/libPlasma.so.6 #12 0x000055cd247b5292 in ShellCorona::~ShellCorona (this=0x55cd3d20d9a0) at /home/build/YPKG/root/plasma-workspace/build/plasma-workspace-6.1.4/shell/shellcorona.cpp:366 #13 0x000055cd247b55de in ShellCorona::~ShellCorona (this=0x5) at /home/build/YPKG/root/plasma-workspace/build/plasma-workspace-6.1.4/shell/shellcorona.cpp:362 #14 0x00007f529d94818c in qDeleteInEventHandler (o=0x55cd3d20d9a0) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:5002 #15 QObject::event (this=0x55cd3d20d9a0, e=0x7f528801fad0) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:1437 #16 0x00007f529fa47aa3 in QApplicationPrivate::notify_helper (this=0x55cd3d11ac30, receiver=0x55cd3d20d9a0, e=0x7f528801fad0) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3287 #17 0x00007f529fa48c1f in QApplication::notify (this=<optimized out>, receiver=0x55cd3d20d9a0, e=0x7f528801fad0) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:2680 #18 0x00007f529d8f4e5d in QCoreApplication::notifyInternal2 (receiver=0x55cd3d20d9a0, event=0x7f528801fad0) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1142 #19 0x00007f529d8f6595 in QCoreApplication::sendEvent (receiver=0x55cd3d20d9a0, event=<optimized out>) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1583 #20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x55cd3d0eeba0) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1940 #21 0x00007f529d8f56d9 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1797 #22 QCoreApplicationPrivate::execCleanup (this=<optimized out>) at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1505 #23 QCoreApplication::exec () at /home/build/YPKG/root/qt6-base/build/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1490 #24 0x000055cd2478d067 in main (argc=2, argv=0x7ffcea67ad58) at /home/build/YPKG/root/plasma-workspace/build/plasma-workspace-6.1.4/shell/main.cpp:188
After xpad was uninstalled, I did get another crash in System Settings when closing out the window with the SDDM page showing, so xpad is not involved in that part
I can reproduce so Confirmed
So the issue goes away completely when xpad isn't installed?
I can no longer reproduce the crash with closing System Settings - SDDM (with or without xpad) With xpad uninstalled, I did not and now do not see a crash when logging out of an X11 dev session, it logs out as normal With xpad installed, after disconnecting the HDMI external monitor, logging out still hangs. I no longer get a new coredump, but the screen hangs at a black background and the yellow xpad square - but this is intermittent. Usually after the second login / logout it will trigger. I can still lock the screen, and unlock it, so it's in a state after some things have exited but not all.
Created attachment 174010 [details] journalctl logs Logs from journalctl starting just after login, and until after the logout attempt
Tracey, are you still able to reproduce this with today's git master?
I'm no longer able to reproduce. Hooray!