Application: systemsettings5 (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.19.8-041908-generic x86_64
Distribution: Ubuntu 18.10

-- Information about the crash:
- What I was doing when the application crashed:
System settings crashed when editing feedback options.
I did also change a bit of theme and lock screen related settings first.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fca8d209240 (LWP 30985))]

Thread 10 (Thread 0x7fca5bfff700 (LWP 10059)):
#0  0x00007fca935d46d9 in __GI___poll (fds=0x7fca54001950, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fca8023d9b1 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fca8022f1e0 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fca8022f82e in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fca8022f8e0 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fca8023d8f9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fca801dd6f8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#7  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fca6ca66700 (LWP 31020)):
#0  0x00007fca935d46d9 in __GI___poll (fds=0x7fca600023e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fca90701e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca907021d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca6d60f7b6 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fca9072a135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fca6d267700 (LWP 31019)):
#0  0x00007fca935d46d9 in __GI___poll (fds=0x561733dc5a90, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fca90701e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca90701f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca90701fb1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fca9072a135 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fca6f15e700 (LWP 31005)):
#0  0x00007fca935d46d9 in __GI___poll (fds=0x7fca64004e00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fca90701e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca90701f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca93af715b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fca93aa416b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fca938f30b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fca92b8d1f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fca938fcc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fca75cf1700 (LWP 30991)):
#0  0x00007fca935d46d9 in __GI___poll (fds=0x7fca68003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fca90701e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca90701f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca93af715b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fca93aa416b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fca938f30b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fca92b8d1f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fca938fcc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fca771d9700 (LWP 30990)):
#0  0x00007ffdc47cc9b9 in  ()
#1  0x00007ffdc47ccbbc in clock_gettime ()
#2  0x00007fca935ef9f6 in __GI___clock_gettime (clock_id=1, tp=0x7fca771d8a80) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007fca93af6a81 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fca93af52b9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fca93af58b5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fca93af6ede in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fca90701379 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fca90701d7b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fca90701f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fca93af715b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fca93aa416b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fca938f30b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fca92b8d1f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007fca938fcc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#16 0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fca83198700 (LWP 30988)):
#0  0x00007fca934ab2eb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56172c261338) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fca934ab2eb in __pthread_cond_wait_common (abstime=0x0, mutex=0x56172c2612e8, cond=0x56172c261310) at pthread_cond_wait.c:502
#2  0x00007fca934ab2eb in __pthread_cond_wait (cond=0x56172c261310, mutex=0x56172c2612e8) at pthread_cond_wait.c:655
#3  0x00007fca8373cd12 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fca8373c8d7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fca89cad700 (LWP 30987)):
#0  0x00007fca90748509 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fca907011e7 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fca90701d7b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fca90701f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fca93af715b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fca93aa416b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fca938f30b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fca93db0545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fca938fcc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fca8b8d7700 (LWP 30986)):
#0  0x00007fca935d46d9 in __GI___poll (fds=0x7fca8b8d6c78, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fca91a31917 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fca91a3353a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fca8c85c159 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fca938fcc87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fca934a5164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fca935e0def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fca8d209240 (LWP 30985)):
[KCrash Handler]
#6  0x00007fca94ff04b2 in  () at /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#7  0x00007fca93ace830 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fca43629d43 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcms/kcm_launchfeedback.so
#9  0x00007fca4362c3e3 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcms/kcm_launchfeedback.so
#10 0x00007fca92aa9084 in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fca92aa9dde in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007fca92aa9ed4 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007fca92abceac in QV4::Runtime::method_storeProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007fca92ac8789 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007fca6dc5d29d in  ()
#16 0x00007fca6e51f320 in  ()
#17 0x00007fca6e51f328 in  ()
#18 0x000056172f611380 in  ()
#19 0x0000000000000000 in  ()
[Inferior 1 (process 30985) detached]

Reported using DrKonqi