Application: kwin_x11 (5.16.3)

Qt Version: 5.12.3
Frameworks Version: 5.60.0
Operating System: Linux 4.18.0-25-generic x86_64
Distribution: KDE neon User Edition 5.16

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

I've returned my computer from the suspend mode.
The plasma crashed, returned again (was automatic and fast) and is working well.

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2e9d401880 (LWP 1615))]

Thread 5 (Thread 0x7f2e6592c700 (LWP 2018)):
#0  0x00007f2e95cd09f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2e99289fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2e95cd09f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2e99289f68, cond=0x7f2e99289f90) at pthread_cond_wait.c:502
#2  0x00007f2e95cd09f3 in __pthread_cond_wait (cond=0x7f2e99289f90, mutex=0x7f2e99289f68) at pthread_cond_wait.c:655
#3  0x00007f2e98f93844 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f2e98f93889 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f2e95cca6db in start_thread (arg=0x7f2e6592c700) at pthread_create.c:463
#6  0x00007f2e9cd6588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f2e7b16a700 (LWP 1818)):
#0  0x00007f2e9cd58cf6 in __GI_ppoll (fds=0x7f2e68000d28, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f2e9a2acab1 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f2e9a2ae1be in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2e9a25203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e9a0794ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2e946e8115 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f2e9a07ac72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f2e95cca6db in start_thread (arg=0x7f2e7b16a700) at pthread_create.c:463
#8  0x00007f2e9cd6588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2e81d22700 (LWP 1652)):
#0  0x00007f2e9cd58cf6 in __GI_ppoll (fds=0x7f2e7400e968, nfds=1, timeout=<optimized out>, sigmask=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1  0x00007f2e9a2acab1 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f2e9a2ae1be in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2e9a25203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f2e9a0794ca in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2e93558015 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#6  0x00007f2e9a07ac72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f2e95cca6db in start_thread (arg=0x7f2e81d22700) at pthread_create.c:463
#8  0x00007f2e9cd6588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f2e841e8700 (LWP 1618)):
#0  0x00007f2e9cd58bf9 in __GI___poll (fds=0x7f2e841e7c28, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2e99db6747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2e99db836a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2e85523578 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f2e9a07ac72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f2e95cca6db in start_thread (arg=0x7f2e841e8700) at pthread_create.c:463
#6  0x00007f2e9cd6588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2e9d401880 (LWP 1615)):
[KCrash Handler]
#6  0x00007f2e998016ef in KWin::WindowQuadList::makeInterleavedArrays(unsigned int, KWin::GLVertex2D*, QMatrix4x4 const&) const () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#7  0x00007f2e79d1532a in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#8  0x00007f2e79d1ca03 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#9  0x00007f2e79d1cb37 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#10 0x00007f2e9c8ad416 in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#11 0x00007f2e99800410 in KWin::Effect::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#12 0x00007f2e9c8ad3ae in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#13 0x00007f2e995a2a06 in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#14 0x00007f2e9c8ad3ae in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#15 0x00007f2e9950c9d5 in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#16 0x00007f2e9c8ad3ae in KWin::EffectsHandlerImpl::drawWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#17 0x00007f2e9c89b670 in KWin::Scene::finalPaintWindow(KWin::EffectWindowImpl*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#18 0x00007f2e9c8ad23d in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#19 0x00007f2e9959483a in  () at /usr/lib/x86_64-linux-gnu/libkwin4_effect_builtins.so.1
#20 0x00007f2e9c8ad1de in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#21 0x00007f2e998002a0 in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#22 0x00007f2e9c8ad1de in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#23 0x00007f2e998002a0 in KWin::Effect::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#24 0x00007f2e9c8ad1de in KWin::EffectsHandlerImpl::paintWindow(KWin::EffectWindow*, int, QRegion, KWin::WindowPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#25 0x00007f2e9c8a1a55 in KWin::Scene::paintWindow(KWin::Scene::Window*, int, QRegion, KWin::WindowQuadList) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#26 0x00007f2e9c89dcb1 in KWin::Scene::paintSimpleScreen(int, QRegion) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#27 0x00007f2e79d12242 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#28 0x00007f2e9c8a0f37 in KWin::Scene::finalPaintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#29 0x00007f2e9c8acf95 in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#30 0x00007f2e998001f1 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#31 0x00007f2e9c8acf3d in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#32 0x00007f2e998001f1 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#33 0x00007f2e9c8acf3d in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#34 0x00007f2e998001f1 in KWin::Effect::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwineffects.so.12
#35 0x00007f2e9c8acf3d in KWin::EffectsHandlerImpl::paintScreen(int, QRegion, KWin::ScreenPaintData&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#36 0x00007f2e9c8a0c2e in KWin::Scene::paintScreen(int*, QRegion const&, QRegion const&, QRegion*, QRegion*, QMatrix4x4 const&, QRect const&) () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#37 0x00007f2e79d186e1 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () at /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so
#38 0x00007f2e9c893262 in KWin::Compositor::performCompositing() () at /usr/lib/x86_64-linux-gnu/libkwin.so.5
#39 0x00007f2e9a28439b in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f2e9b04f65c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f2e9b056b90 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007f2e9a253d18 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f2e9a2b0219 in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f2e9a2ae422 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007f2e8552491e in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#46 0x00007f2e9a25203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#47 0x00007f2e9a25b170 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#48 0x00007f2e9d03df88 in kdemain () at /usr/lib/x86_64-linux-gnu/libkdeinit5_kwin_x11.so
#49 0x00007f2e9cc65b97 in __libc_start_main (main=0x55c6a4c00720, argc=1, argv=0x7ffd584d0328, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd584d0318) at ../csu/libc-start.c:310
#50 0x000055c6a4c0075a in _start ()

Reported using DrKonqi