Application: systemsettings5 (5.11.5)

Qt Version: 5.9.3
Frameworks Version: 5.42.0
Operating System: Linux 4.14.14-041414-generic x86_64
Distribution: KDE neon User Edition 5.11

-- Information about the crash:
- What I was doing when the application crashed:

Ao selecionar a opção de temas da area de trabalho, simplesmente não aparece nada e ao usar a tecla tab, para de alguma forma tentar resolver o problema aparece o erro.

The crash can be reproduced every time.

-- Backtrace:
Application: Configurações do Sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb2020128c0 (LWP 9333))]

Thread 5 (Thread 0x7fb1d2a2f700 (LWP 9342)):
#0  0x00007fb1f7c06a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb1f7bc1c3e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb1f7bc2330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb1f7bc249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb1fe5ee6cb in QEventDispatcherGlib::processEvents (this=0x7fb1cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fb1fe596e2a in QEventLoop::exec (this=this@entry=0x7fb1d2a2ece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fb1fe3bf8f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#7  0x00007fb1fc44fd25 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fb1fe3c4709 in QThreadPrivate::start (arg=0xe5f910) at thread/qthread_unix.cpp:368
#9  0x00007fb1f9a876ba in start_thread (arg=0x7fb1d2a2f700) at pthread_create.c:333
#10 0x00007fb1fdcc741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fb1d6687700 (LWP 9338)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb1dbe9148b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fb1dbe91397 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fb1f9a876ba in start_thread (arg=0x7fb1d6687700) at pthread_create.c:333
#4  0x00007fb1fdcc741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fb1d74bf700 (LWP 9337)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb1dbe9148b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fb1dbe91397 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fb1f9a876ba in start_thread (arg=0x7fb1d74bf700) at pthread_create.c:333
#4  0x00007fb1fdcc741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb1e581f700 (LWP 9336)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:91
#1  0x00007fb1fdcb7289 in read () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007fb1f7c056f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb1f7bc1e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb1f7bc2330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb1f7bc249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb1fe5ee6cb in QEventDispatcherGlib::processEvents (this=0x7fb1e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007fb1fe596e2a in QEventLoop::exec (this=this@entry=0x7fb1e581ecd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007fb1fe3bf8f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#9  0x00007fb1fea6e315 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007fb1fe3c4709 in QThreadPrivate::start (arg=0x7fb1fece2d40) at thread/qthread_unix.cpp:368
#11 0x00007fb1f9a876ba in start_thread (arg=0x7fb1e581f700) at pthread_create.c:333
#12 0x00007fb1fdcc741d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb2020128c0 (LWP 9333)):
[KCrash Handler]
#6  QQuickWindow::contentItem (this=0xe189480022c26335) at items/qquickwindow.cpp:1460
#7  0x00007fb1fc95a603 in QQuickItemPrivate::nextPrevItemInTabFocusChain (item=0xe79d00, forward=forward@entry=true) at items/qquickitem.cpp:2535
#8  0x00007fb1fc95b0e9 in QQuickItem::nextItemInFocusChain (this=<optimized out>, forward=forward@entry=true) at items/qquickitem.cpp:4680
#9  0x00007fb201a6dd82 in KCModuleQml::focusInEvent (this=0xe67ed0, event=0x7ffe18294b20) at /workspace/build/src/kcmoduleqml.cpp:196
#10 0x00007fb2001db237 in QWidget::event (this=0xe67ed0, event=0x7ffe18294b20) at kernel/qwidget.cpp:8937
#11 0x00007fb20019bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xe67ed0, e=0x7ffe18294b20) at kernel/qapplication.cpp:3722
#12 0x00007fb2001a35a7 in QApplication::notify (this=0x7ffe182958d0, receiver=0xe67ed0, e=0x7ffe18294b20) at kernel/qapplication.cpp:3481
#13 0x00007fb1fe598df8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0xe67ed0, event=event@entry=0x7ffe18294b20) at kernel/qcoreapplication.cpp:1018
#14 0x00007fb2001a1526 in QCoreApplication::sendEvent (event=0x7ffe18294b20, receiver=0xe67ed0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#15 QApplicationPrivate::setFocusWidget (focus=focus@entry=0xe67ed0, reason=reason@entry=Qt::TabFocusReason) at kernel/qapplication.cpp:1818
#16 0x00007fb2001d5731 in QWidget::setFocus (this=0xe67ed0, reason=Qt::TabFocusReason) at kernel/qwidget.cpp:6592
#17 0x00007fb2001d5ae0 in QWidget::focusNextPrevChild (this=<optimized out>, next=<optimized out>) at kernel/qwidget.cpp:6831
#18 0x00007fb2001d59ea in QWidget::focusNextPrevChild (this=0xa89e30, next=<optimized out>) at kernel/qwidget.cpp:6798
#19 0x00007fb2001d59ea in QWidget::focusNextPrevChild (this=0xd9ea20, next=<optimized out>) at kernel/qwidget.cpp:6798
#20 0x00007fb2001d59ea in QWidget::focusNextPrevChild (this=0xda0f00, next=<optimized out>) at kernel/qwidget.cpp:6798
#21 0x00007fb2001d59ea in QWidget::focusNextPrevChild (this=0xda12a0, next=<optimized out>) at kernel/qwidget.cpp:6798
#22 0x00007fb2001d59ea in QWidget::focusNextPrevChild (this=0xda1820, next=<optimized out>) at kernel/qwidget.cpp:6798
#23 0x00007fb2001d59ea in QWidget::focusNextPrevChild (this=this@entry=0xb62ac0, next=<optimized out>) at kernel/qwidget.cpp:6798
#24 0x00007fb200334e62 in QScrollArea::focusNextPrevChild (this=0xb62ac0, next=<optimized out>) at widgets/qscrollarea.cpp:425
#25 0x00007fb2001db9dc in QWidget::event (this=this@entry=0xb62ac0, event=event@entry=0x7ffe182954a0) at kernel/qwidget.cpp:8849
#26 0x00007fb2002822fe in QFrame::event (this=this@entry=0xb62ac0, e=e@entry=0x7ffe182954a0) at widgets/qframe.cpp:550
#27 0x00007fb20028b6c3 in QAbstractScrollArea::event (this=0xb62ac0, e=0x7ffe182954a0) at widgets/qabstractscrollarea.cpp:1155
#28 0x00007fb20019bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xb62ac0, e=0x7ffe182954a0) at kernel/qapplication.cpp:3722
#29 0x00007fb2001a4ed6 in QApplication::notify (this=0x7ffe182958d0, receiver=0xb62ac0, e=0x7ffe182954a0) at kernel/qapplication.cpp:3116
#30 0x00007fb1fe598df8 in QCoreApplication::notifyInternal2 (receiver=0xb62ac0, event=0x7ffe182954a0) at kernel/qcoreapplication.cpp:1018
#31 0x00007fb2001f757b in QWidgetWindow::event (this=0xbea5e0, event=0x7ffe182954a0) at kernel/qwidgetwindow.cpp:236
#32 0x00007fb20019bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xbea5e0, e=0x7ffe182954a0) at kernel/qapplication.cpp:3722
#33 0x00007fb2001a35a7 in QApplication::notify (this=0x7ffe182958d0, receiver=0xbea5e0, e=0x7ffe182954a0) at kernel/qapplication.cpp:3481
#34 0x00007fb1fe598df8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0xbea5e0, event=event@entry=0x7ffe182954a0) at kernel/qcoreapplication.cpp:1018
#35 0x00007fb1ffa25408 in QCoreApplication::sendSpontaneousEvent (event=0x7ffe182954a0, receiver=0xbea5e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#36 QGuiApplicationPrivate::processKeyEvent (e=0xf03b40) at kernel/qguiapplication.cpp:2075
#37 0x00007fb1ffa2a7a5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0xf03b40) at kernel/qguiapplication.cpp:1739
#38 0x00007fb1ffa0481b in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:939
#39 0x00007fb1f0f41440 in userEventSourceDispatch (source=<optimized out>) at qeventdispatcher_glib.cpp:77
#40 0x00007fb1f7bc2197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fb1f7bc23f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007fb1f7bc249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fb1fe5ee6af in QEventDispatcherGlib::processEvents (this=0xa36990, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#44 0x00007fb1fe596e2a in QEventLoop::exec (this=this@entry=0x7ffe182957b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#45 0x00007fb1fe59fd64 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#46 0x00007fb1ffa2020c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1679
#47 0x00007fb20019baf5 in QApplication::exec () at kernel/qapplication.cpp:2910
#48 0x000000000040b689 in main (argc=1, argv=<optimized out>) at /workspace/build/app/main.cpp:65

Reported using DrKonqi