SUMMARY After opening System Tray Settings then enabling Display configuration in Extras Items then clicking apply, the whole plasma desktop crashes. This crash is not always reproductible but it happens from time to time. This is the crash information : Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7fb8b6a6d300 (LWP 1578))] Thread 14 (Thread 0x7fb86dd12700 (LWP 9189)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560aa2fd02e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560aa2fd0290, cond=0x560aa2fd02b8) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560aa2fd02b8, mutex=0x560aa2fd0290) at pthread_cond_wait.c:638 #3 0x00007fb8ba393def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba393ee1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8bc04a7b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fb8bc04aa1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 13 (Thread 0x7fb86e6df700 (LWP 9188)): #0 0x00007fb8b8c43f97 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #1 0x00007fb8b8c4496b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fb8b8c44b73 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fb8ba5ac6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba55363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8ba38ca75 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fb8bbced319 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7fb86f083700 (LWP 30720)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560a9c12e8a4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560a9c12e850, cond=0x560a9c12e878) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560a9c12e878, mutex=0x560a9c12e850) at pthread_cond_wait.c:638 #3 0x00007fb8ba393def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba393ee1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8bc04a7b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fb8bc04aa1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 11 (Thread 0x7fb88880e700 (LWP 2100)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560a9a9e5264) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560a9a9e5210, cond=0x560a9a9e5238) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560a9a9e5238, mutex=0x560a9a9e5210) at pthread_cond_wait.c:638 #3 0x00007fb8ba393def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba393ee1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8bc04a7b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fb8bc04aa1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 10 (Thread 0x7fb86ff38700 (LWP 1936)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560a9bf3cad4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560a9bf3ca80, cond=0x560a9bf3caa8) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560a9bf3caa8, mutex=0x560a9bf3ca80) at pthread_cond_wait.c:638 #3 0x00007fb8ba393def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba393ee1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8bc04a7b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fb8bc04aa1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 9 (Thread 0x7fb88b6a0700 (LWP 1921)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560a997800c0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560a99780070, cond=0x560a99780098) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560a99780098, mutex=0x560a99780070) at pthread_cond_wait.c:638 #3 0x00007fb8ba393def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba393ee1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8bc04a7b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fb8bc04aa1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7fb88bfff700 (LWP 1919)): #0 0x00007ffcbffbf933 in clock_gettime () #1 0x00007fb8ba01e12b in __GI___clock_gettime (clock_id=1, tp=0x7fb88bffeb40) at ../sysdeps/unix/sysv/linux/clock_gettime.c:33 #2 0x00007fb8ba5abf85 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007fb8ba5aa82d in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba5ac36d in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8b8c44471 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007fb8b8c449e2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007fb8b8c44b73 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007fb8ba5ac6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007fb8ba55363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007fb8ba38ca75 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007fb89081c01c in KCupsConnection::run() () from /lib/x86_64-linux-gnu/libkcupslib.so #12 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #13 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #14 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7fb8913d8700 (LWP 1912)): #0 0x00007ffcbffbf933 in clock_gettime () #1 0x00007fb8ba01e12b in __GI___clock_gettime (clock_id=1, tp=0x7fb8913d7b10) at ../sysdeps/unix/sysv/linux/clock_gettime.c:33 #2 0x00007fb8ba5abf85 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007fb8ba5aa82d in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba5aae09 in QTimerInfoList::timerWait(timespec&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8ba5ac416 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fb8b8c43fbf in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007fb8b8c4496b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007fb8b8c44b73 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #9 0x00007fb8ba5ac6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007fb8ba55363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007fb8ba38ca75 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #12 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #13 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #14 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7fb8a2118700 (LWP 1902)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560a97972384) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560a97972330, cond=0x560a97972358) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560a97972358, mutex=0x560a97972330) at pthread_cond_wait.c:638 #3 0x00007fb8ba393def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba393ee1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8bc04a7b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #6 0x00007fb8bc04aa1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7fb8ad6ef700 (LWP 1820)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560a9751e738) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x560a9751e6e8, cond=0x560a9751e710) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x560a9751e710, mutex=0x560a9751e6e8) at pthread_cond_wait.c:638 #3 0x00007fb8add8497b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007fb8add8459b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #6 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7fb8af5ef700 (LWP 1802)): #0 0x00007fb8ba003c2f in __GI___poll (fds=0x7fb8a40025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fb8b8c44a3e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007fb8b8c44b73 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007fb8ba5ac6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba55363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8ba38ca75 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fb8bbced319 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #9 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7fb8b4db2700 (LWP 1594)): #0 0x00007ffcbffbf933 in clock_gettime () #1 0x00007fb8ba01e12b in __GI___clock_gettime (clock_id=1, tp=0x7fb8b4db1ae0) at ../sysdeps/unix/sysv/linux/clock_gettime.c:33 #2 0x00007fb8ba5abf85 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #3 0x00007fb8ba5aa82d in QTimerInfoList::updateCurrentTime() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007fb8ba5aae09 in QTimerInfoList::timerWait(timespec&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8ba5ac416 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007fb8b8c43fbf in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007fb8b8c4496b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #8 0x00007fb8b8c44b73 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #9 0x00007fb8ba5ac6c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007fb8ba55363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x00007fb8ba38ca75 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #12 0x00007fb8bae6fefa in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5 #13 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #14 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #15 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7fb8b5bd3700 (LWP 1590)): #0 0x00007fb8ba003c2f in __GI___poll (fds=0x7fb8b5bd2ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007fb8bc443917 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007fb8bc44553a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007fb8b63bb288 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007fb8ba38dcc2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007fb8b9835669 in start_thread (arg=<optimized out>) at pthread_create.c:479 #6 0x00007fb8ba010323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7fb8b6a6d300 (LWP 1578)): [KCrash Handler] #6 0x00007fb86cd24140 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_kscreen.so #7 0x00007fb86cd243eb in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_kscreen.so #8 0x00007fb86cd245f1 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_kscreen.so #9 0x00007fb8bbc904e5 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #10 0x00007fb8bbb92401 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #11 0x00007fb8bbb93ec5 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #12 0x00007fb8bbb94bbc in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #13 0x00007fb8bbbb07e8 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #14 0x00007fb8bbbb3857 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #15 0x00007fb8bbb41bb0 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #16 0x00007fb8bbb22b1e in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #17 0x00007fb8bbbb07e8 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #18 0x00007fb8bbbb3857 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #19 0x00007fb8bbb41093 in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #20 0x00007fb8bbcb8457 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #21 0x00007fb8bbcbe1d0 in QQmlBinding::evaluate(bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #22 0x00007fb8bbcc2c06 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #23 0x00007fb8bbcbf45b in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #24 0x00007fb8bbccdf7c in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #25 0x00007fb8bbc5826a in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #26 0x00007fb8bbc58857 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #27 0x00007fb8bbc551b4 in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #28 0x00007fb8bc34acb1 in KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant> const&) () from /lib/x86_64-linux-gnu/libKF5Declarative.so.5 #29 0x00007fb8bc831c83 in PlasmaQuick::AppletQuickItem::init() () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5 #30 0x00007fb8b454eac9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so #31 0x00007fb8bc8331b1 in PlasmaQuick::AppletQuickItem::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5 #32 0x00007fb8bc089064 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #33 0x00007fb8bc08cb60 in QQuickItemPrivate::refWindow(QQuickWindow*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #34 0x00007fb8bc08f60d in QQuickItem::setParentItem(QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #35 0x00007fb8bc09371f in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #36 0x00007fb8bc093c0b in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #37 0x00007fb8bc83324a in PlasmaQuick::AppletQuickItem::qt_metacall(QMetaObject::Call, int, void**) () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5 #38 0x00007fb8b454f8ea in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so #39 0x00007fb8ba56199b in QMetaProperty::write(QObject*, QVariant const&) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #40 0x00007fb8ba58911e in QObject::setProperty(char const*, QVariant const&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #41 0x00007fb8b4554a16 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so #42 0x00007fb8ba5805c8 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #43 0x00007fb8bc3907f3 in Plasma::Containment::appletAdded(Plasma::Applet*) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5 #44 0x00007fb8bc39289b in Plasma::Containment::addApplet(Plasma::Applet*) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5 #45 0x00007fb8bc3a727f in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5 #46 0x00007fb8bc391059 in Plasma::Containment::createApplet(QString const&, QList<QVariant> const&) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5 #47 0x00007fb8b40c9931 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so #48 0x00007fb8b40cd4df in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so #49 0x00007fb8b40cdc0d in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so #50 0x00007fb8b40d0c01 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so #51 0x00007fb8b40d0ddb in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so #52 0x00007fb8bbc51c26 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #53 0x00007fb8bbc4e93d in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #54 0x00007fb8bbb95b59 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #55 0x00007fb8bbb964de in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #56 0x00007fb8bbb96633 in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #57 0x00007fb8bbb5abdc in QV4::Object::virtualResolveLookupSetter(QV4::Object*, QV4::ExecutionEngine*, QV4::Lookup*, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #58 0x00007fb8bbbaec1b in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #59 0x00007fb8bbbb3857 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #60 0x00007fb8bbb41093 in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #61 0x00007fb8bbcb8457 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #62 0x00007fb8bbc5cbcf in QQmlBoundSignalExpression::evaluate(void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #63 0x00007fb8bbc5dd8b in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #64 0x00007fb8bbc9b053 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #65 0x00007fb8bbc3ef62 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #66 0x00007fb8ba57fd53 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #67 0x00007fb8bbc351be in QQmlOpenMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #68 0x00007fb8bbc51c26 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #69 0x00007fb8bbc4ee74 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #70 0x00007fb8bbb95b59 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #71 0x00007fb8bbb964de in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #72 0x00007fb8bbb96633 in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #73 0x00007fb8bbc16ae3 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #74 0x00007fb8bbc16b98 in QV4::Runtime::method_storeElement(QV4::ExecutionEngine*, QV4::Value const&, QV4::Value const&, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #75 0x00007fb8bbbaea66 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #76 0x00007fb8bbbb3857 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #77 0x00007fb8bbb41bb0 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #78 0x00007fb8bbbb07e8 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #79 0x00007fb8bbbb3857 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #80 0x00007fb8bbb41093 in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #81 0x00007fb8bbcb8457 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #82 0x00007fb8bbc5cbcf in QQmlBoundSignalExpression::evaluate(void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #83 0x00007fb8bbc5dd8b in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #84 0x00007fb8bbc9b053 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #85 0x00007fb8bbc3ef62 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #86 0x00007fb8ba57fd53 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #87 0x00007fb8b4f45e46 in QQuickAction::triggered(QObject*) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5 #88 0x00007fb8b4f46b45 in ?? () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5 #89 0x00007fb8b4f46def in ?? () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5 #90 0x00007fb8b4f47553 in QQuickAction::qt_metacall(QMetaObject::Call, int, void**) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5 #91 0x00007fb8bbc904e5 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #92 0x00007fb8bbb92723 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #93 0x00007fb8bbb93e99 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #94 0x00007fb8bbb94f9a in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #95 0x00007fb8bbbb07e8 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #96 0x00007fb8bbbb3857 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #97 0x00007fb8bbb41093 in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #98 0x00007fb8bbcb8457 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #99 0x00007fb8bbc5cbcf in QQmlBoundSignalExpression::evaluate(void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #100 0x00007fb8bbc5dd8b in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #101 0x00007fb8bbc9b053 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #102 0x00007fb8bbc3ef62 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5 #103 0x00007fb8ba57fd53 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #104 0x00007fb8b4f44c18 in QQuickAbstractButtonPrivate::handleRelease(QPointF const&) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5 #105 0x00007fb8b4f625d9 in QQuickControl::mouseReleaseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5 #106 0x00007fb8bc08dd98 in QQuickItem::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #107 0x00007fb8bb0f4a86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #108 0x00007fb8bb0fde00 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #109 0x00007fb8ba554a9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #110 0x00007fb8bc0a833d in QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #111 0x00007fb8bc0a958f in QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #112 0x00007fb8bc0aa2df in QQuickWindowPrivate::handleMouseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #113 0x00007fb8ba947b3d in QWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #114 0x00007fb8bc0ab67f in QQuickWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5 #115 0x00007fb8bb0f4a86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #116 0x00007fb8bb0fde00 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #117 0x00007fb8ba554a9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #118 0x00007fb8ba93cd73 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #119 0x00007fb8ba93e5fb in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #120 0x00007fb8ba91826b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Gui.so.5 #121 0x00007fb8b63bc28e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #122 0x00007fb8b8c4484d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #123 0x00007fb8b8c44ad0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #124 0x00007fb8b8c44b73 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #125 0x00007fb8ba5ac6a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #126 0x00007fb8ba55363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #127 0x00007fb8ba55b3a6 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #128 0x0000560a95e096aa in ?? () #129 0x00007fb8b9f151e3 in __libc_start_main (main=0x560a95e08b80, argc=1, argv=0x7ffcbff09488, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcbff09478) at ../csu/libc-start.c:308 #130 0x0000560a95e09ade in _start () [Inferior 1 (process 1578) detached]
Could you get debug symbols for /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_kscreen.so and try and reproduce
(In reply to David Edmundson from comment #1) > Could you get debug symbols for > > /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_kscreen.so > > and try and reproduce Is there a wiki page or tutorial that shows me how to do this debug symbols, because I found that this bug is always reproductible only at each new boot.
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
Is there a wiki page or tutorial that shows me how to do this debug symbols, because I found that this bug is always reproductible only at each new boot.
What is your distribution? On Neon you can do that with this command: sudo apt install kscreen-dbgsym
I use : Operating System: Kubuntu 19.10 KDE Plasma Version: 5.17.4 KDE Frameworks Version: 5.65.0 Qt Version: 5.12.4 Kernel Version: 5.3.0-26-generic OS Type: 64-bit Processors: 2 × Pentium® Dual-Core CPU T4400 @ 2.20GHz Memory: 5.6 GiB of RAM When I tried to install kscreen-dbgsym I get the following error : sudo apt install kscreen-dbgsym Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: kscreen-dbgsym : Depends: kscreen (= 4:5.16.5-0ubuntu1) but 4:5.17.4-0ubuntu1~ubuntu19.10~ppa1 is to be installed E: Unable to correct problems, you have held broken packages.
OK, so you have this PPA: https://launchpad.net/~kubuntu-ppa/+archive/ubuntu/backports The error you get is strange, debug packages are there: http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu/pool/main/k/kscreen/ Can you download and install this package: http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu/pool/main/k/kscreen/kscreen-dbgsym_5.17.4-0ubuntu1~ubuntu19.10~ppa1_amd64.ddeb You can also install debug packages from this location: http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu/pool/main/p/plasma-workspace/ plasma-workspace-dbgsym_5.17.4-0ubuntu1~ubuntu19.10~ppa1_amd64.ddeb libkworkspace5-5-dbgsym_5.17.4-0ubuntu1~ubuntu19.10~ppa1_amd64.ddeb
We can't do much until there's a backtrace from kscreen, marking as needsinfo
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!