https://bugs.kde.org/show_bug.cgi?id=359609

            Bug ID: 359609
           Summary: kde does not work with tigervnc
           Product: plasmashell
           Version: 5.5.4
          Platform: Fedora RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: k...@davidedmundson.co.uk
          Reporter: fuzzyb...@comcast.net
                CC: bhus...@gmail.com, plasma-b...@kde.org

Application: plasmashell (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.3.5-300.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

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

every attempt to start a vnc session with kde running resutls in a crash.
"Could not start ksmserver. Check your installation." I running kde from fedora
23 repo.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f848e483940 (LWP 9898))]

Thread 7 (Thread 0x7f846c9af700 (LWP 9901)):
#0  0x00007f8485e64fdd in poll () at /lib64/libc.so.6
#1  0x00007f848c31b272 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f848c31cee7 in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f846f2cdda9 in QXcbEventReader::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f8486a6d3de in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#5  0x00007f84851a860a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f8485e70a4d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f8469927700 (LWP 9920)):
#0  0x00007f8485e64fdd in poll () at /lib64/libc.so.6
#1  0x00007f84812d516c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f84812d527c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f8486ca4eaf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f8486c4beca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f8486a68434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f848adb39b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f8486a6d3de in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f84851a860a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8485e70a4d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f8461aea700 (LWP 9921)):
#0  0x00007f8485e64fdd in poll () at /lib64/libc.so.6
#1  0x00007f84812d516c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f84812d527c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f8486ca4eaf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f8486c4beca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f8486a68434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f848adb39b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f8486a6d3de in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f84851a860a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8485e70a4d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f8457fff700 (LWP 9922)):
#0  0x00007f8485e64fdd in poll () at /lib64/libc.so.6
#1  0x00007f84812d516c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f84812d527c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f8486ca4eaf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f8486c4beca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f8486a68434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f848adb39b5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f8486a6d3de in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f84851a860a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8485e70a4d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f84567b6700 (LWP 9924)):
#0  0x00007f84851adb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f848dc0b514 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at
/lib64/libQt5Script.so.5
#2  0x00007f848dc0b559 in  () at /lib64/libQt5Script.so.5
#3  0x00007f84851a860a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f8485e70a4d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f83cecc8700 (LWP 9928)):
#0  0x00007f8485e64fdd in poll () at /lib64/libc.so.6
#1  0x00007f84812d516c in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#2  0x00007f84812d527c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#3  0x00007f8486ca4ecb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#4  0x00007f8486c4beca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#5  0x00007f8486a68434 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f848b9608d6 in QQuickPixmapReader::run() () at
/lib64/libQt5Quick.so.5
#7  0x00007f8486a6d3de in QThreadPrivate::start(void*) () at
/lib64/libQt5Core.so.5
#8  0x00007f84851a860a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f8485e70a4d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f848e483940 (LWP 9898)):
[KCrash Handler]
#5  0x00007f8485da2a98 in raise () at /lib64/libc.so.6
#6  0x00007f8485da469a in abort () at /lib64/libc.so.6
#7  0x00007f8486a5ab51 in  () at /lib64/libQt5Core.so.5
#8  0x00007f848b9cd2f1 in  () at /lib64/libQt5Quick.so.5
#9  0x00007f848b9ce305 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*)
() at /lib64/libQt5Quick.so.5
#10 0x00007f848b9cf2a6 in
QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) () at
/lib64/libQt5Quick.so.5
#11 0x00007f8487193995 in QWindow::event(QEvent*) () at /lib64/libQt5Gui.so.5
#12 0x00007f848ba08801 in QQuickWindow::event(QEvent*) () at
/lib64/libQt5Quick.so.5
#13 0x0000560594453f86 in DesktopView::event(QEvent*) ()
#14 0x00007f848820241c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#15 0x00007f84882078e6 in QApplication::notify(QObject*, QEvent*) () at
/lib64/libQt5Widgets.so.5
#16 0x00007f8486c4e73b in QCoreApplication::notifyInternal(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#17 0x00007f848718be7c in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
() at /lib64/libQt5Gui.so.5
#18 0x00007f848718cbed in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /lib64/libQt5Gui.so.5
#19 0x00007f8487170918 in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /lib64/libQt5Gui.so.5
#20 0x00007f846f2ff0b0 in userEventSourceDispatch(_GSource*, int (*)(void*),
void*) () at /lib64/libQt5XcbQpa.so.5
#21 0x00007f84812d4e3a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#22 0x00007f84812d51d0 in g_main_context_iterate.isra () at
/lib64/libglib-2.0.so.0
#23 0x00007f84812d527c in g_main_context_iteration () at
/lib64/libglib-2.0.so.0
#24 0x00007f8486ca4eaf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /lib64/libQt5Core.so.5
#25 0x00007f8486c4beca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/lib64/libQt5Core.so.5
#26 0x00007f8486c53fac in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#27 0x000056059444508a in main ()

Reported using DrKonqi

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