SUMMARY After dist-upgrade on 12th Oct 2023, KWin Wayland crashes at login STEPS TO REPRODUCE 1. Install KDE Neon Unstable to VirtualBox 2. Perform apt dist-upgrade 3. Log in to Plasma (Wayland) session. OBSERVED RESULT Plasma desktop not visible, black screen with piled-up crash report windows show up. EXPECTED RESULT Plasma desktop visible and functional. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Neon Unstable KDE Plasma Version: 5.27.80 KDE Frameworks Version: 5.240.0 Qt Version: 6.6.0
Created attachment 162257 [details] Backtrace from coredumpctl
Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f726cb80ee9 in KSelectionOwner::filterEvent(void*) () from /lib/x86_64-linux-gnu/libKF6WindowSystem.so.6 [Current thread is 1 (Thread 0x7f72668eaac0 (LWP 2699))] #0 0x00007f726cb80ee9 in KSelectionOwner::filterEvent(void*) () from /lib/x86_64-linux-gnu/libKF6WindowSystem.so.6 #1 0x00007f726b356f6f in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x5570c2c7a560, result=result@entry=0x7fffee207ef8) at ./src/corelib/kernel/qabstracteventdispatcher.cpp:432 #2 0x00005570c04f2e73 in KWin::Xwl::Xwayland::dispatchEvents (this=0x5570c1cdf420, mode=<optimized out>) at xwayland/./src/xwayland/xwayland.cpp:247 #3 0x00007f726b3b0437 in QtPrivate::QSlotObjectBase::call (a=0x7fffee208050, r=0x5570c1cdf420, this=<optimized out>) at ./src/corelib/kernel/qobjectdefs_impl.h:433 #4 doActivate<false> (sender=0x5570c2cae350, signal_index=3, argv=0x7fffee208050) at ./src/corelib/kernel/qobject.cpp:4021 #5 0x00007f726b3aab97 in QMetaObject::activate (sender=sender@entry=0x5570c2cae350, m=m@entry=0x7f726b7844a0 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffee208050) at ./src/corelib/kernel/qobject.cpp:4081 #6 0x00007f726b3bbdca in QSocketNotifier::activated (this=this@entry=0x5570c2cae350, _t1=..., _t2=<optimized out>, _t3=...) at ./obj-x86_64-linux-gnu/src/corelib/Core_autogen/include/moc_qsocketnotifier.cpp:231 #7 0x00007f726b3bc539 in QSocketNotifier::event (this=0x5570c2cae350, e=<optimized out>) at ./src/corelib/kernel/qsocketnotifier.cpp:326 #8 0x00007f726c189576 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5570c2cae350, e=0x7fffee208180) at ./src/widgets/kernel/qapplication.cpp:3290 #9 0x00007f726b359c68 in QCoreApplication::notifyInternal2 (receiver=0x5570c2cae350, event=0x7fffee208180) at ./src/corelib/kernel/qcoreapplication.cpp:1118 #10 0x00007f726b4c83d6 in QEventDispatcherUNIXPrivate::activateSocketNotifiers (this=0x5570c1a87730) at ./src/corelib/kernel/qeventdispatcher_unix.cpp:268 #11 0x00007f726b4c8888 in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at ./src/corelib/kernel/qeventdispatcher_unix.cpp:477 #12 0x00007f726bdd87e1 in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at ./src/gui/platform/unix/qunixeventdispatcher.cpp:27 #13 0x00007f726b366883 in QEventLoop::exec (this=this@entry=0x7fffee208300, flags=..., flags@entry=...) at ./src/corelib/global/qflags.h:34 #14 0x00007f726b3627e6 in QCoreApplication::exec () at ./src/corelib/global/qflags.h:74 #15 0x00007f726b9aa440 in QGuiApplication::exec () at ./src/gui/kernel/qguiapplication.cpp:1921 #16 0x00007f726c1894e9 in QApplication::exec () at ./src/widgets/kernel/qapplication.cpp:2569 #17 0x00005570c04d1185 in main (argc=<optimized out>, argv=<optimized out>) at ./src/main_wayland.cpp:607 [?2004h(gdb) [?2004l quit
*** This bug has been marked as a duplicate of bug 461178 ***