Application: systemsettings5 (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-36-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I was changing the theme to use oxygen, then i changed to another option.

I read about a bug related and there somebody made the next comment:
(https://bugs.kde.org/show_bug.cgi?id=355711)
  "This bug is fixed since KDE Frameworks version 5.19, but Ubuntu LTS 16.04 only ships 5.18 version. Please report this to the bug tracker of your distribution."

I use kubuntu 16.04 and i see the version 5.18 for KDE

The crash can be reproduced every time.

-- Backtrace:
Application: Preferencias del sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f70f28728c0 (LWP 13739))]

Thread 2 (Thread 0x7f70e0f86700 (LWP 13740)):
#0  0x00007f70eef8ce8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f70ecc74c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f70ecc768d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f70e32d8629 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f70ef68284e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f70ec3fe6fa in start_thread (arg=0x7f70e0f86700) at pthread_create.c:333
#6  0x00007f70eef98b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f70f28728c0 (LWP 13739)):
[KCrash Handler]
#6  0x00007f70ef8961e7 in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f70d2a8b1b3 in KParts::PartManager::~PartManager() () from /usr/lib/x86_64-linux-gnu/libKF5Parts.so.5
#8  0x00007f70d2a8b369 in KParts::PartManager::~PartManager() () from /usr/lib/x86_64-linux-gnu/libKF5Parts.so.5
#9  0x00007f70ef89052b in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f70ef899da0 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f70d31ce31b in KHTMLPart::~KHTMLPart() () from /usr/lib/x86_64-linux-gnu/libKF5KHtml.so.5
#12 0x00007f70d31ce439 in KHTMLPart::~KHTMLPart() () from /usr/lib/x86_64-linux-gnu/libKF5KHtml.so.5
#13 0x00007f70ef892ec0 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f70f0d3605c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f70f0d3b516 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f70ef86362b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f70ef865a26 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f70ef8b9673 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f70ebedd1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f70ebedd400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f70ebedd4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f70ef8b9a7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f70ef860dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f70ef868e8c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x000000000040f7a1 in main ()

Possible duplicates by query: bug 367884, bug 366515, bug 366489, bug 364754, bug 364048.

Reported using DrKonqi