Process 1287 (kwin_x11) of user 1000 dumped core.

Stack trace of thread 1526:
#0  0x00007fe110c9082f raise (libc.so.6)
#1  0x00007fe1108d06a2 _ZN6KCrash19defaultCrashHandlerEi (libKF5Crash.so.5)
#2  0x00007fe110c908b0 __restore_rt (libc.so.6)
#3  0x00007fe110c9082f raise (libc.so.6)
#4  0x00007fe110c7b672 abort (libc.so.6)
#5  0x00007fe10f6467fc _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5)
#6  0x00007fe106418b9c n/a (KWinX11Platform.so)
#7  0x00007fe10f86631b _ZN11QMetaObject8activateEP7QObjectiiPPv (libQt5Core.so.5)
#8  0x00007fe10f872288 _ZN6QTimer7timeoutENS_14QPrivateSignalE (libQt5Core.so.5)
#9  0x00007fe10f866a3b _ZN7QObject5eventEP6QEvent (libQt5Core.so.5)
#10 0x00007fe110206da4 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#11 0x00007fe11020e3c1 _ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#12 0x00007fe10f83b849 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#13 0x00007fe10f88fd15 _ZN14QTimerInfoList14activateTimersEv (libQt5Core.so.5)
#14 0x00007fe10f88de5e _ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
#15 0x00007fe10f83a4dc _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#16 0x00007fe10f67f239 _ZN7QThread4execEv (libQt5Core.so.5)
#17 0x00007fe10f68063c n/a (libQt5Core.so.5)
#18 0x00007fe110c3fa92 start_thread (libpthread.so.0)
#19 0x00007fe110d53cd3 __clone (libc.so.6)

Stack trace of thread 1527:
#0  0x00007fe110c45bac pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
#1  0x00007fe0f59682e4 n/a (i965_dri.so)
#2  0x00007fe0f5968008 n/a (i965_dri.so)
#3  0x00007fe110c3fa92 start_thread (libpthread.so.0)
#4  0x00007fe110d53cd3 __clone (libc.so.6)

Stack trace of thread 1374:
#0  0x00007fe110c45fa6 pthread_cond_timedwait@@GLIBC_2.3.2 (libpthread.so.0)
#1  0x00007fe10f686899 _ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5)
#2  0x00007fe10f6869d8 _ZN14QWaitCondition4waitEP6QMutexm (libQt5Core.so.5)
#3  0x00007fe10f683eab n/a (libQt5Core.so.5)
#4  0x00007fe10f68063c n/a (libQt5Core.so.5)
#5  0x00007fe110c3fa92 start_thread (libpthread.so.0)
#6  0x00007fe110d53cd3 __clone (libc.so.6)

Stack trace of thread 1494:
#0  0x00007fe110d491c6 ppoll (libc.so.6)
#1  0x00007fe10f88c82b _Z12qt_safe_pollP6pollfdmPK8timespec (libQt5Core.so.5)
#2  0x00007fe10f88dd0b _ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
#3  0x00007fe10f83a4dc _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#4  0x00007fe10f67f239 _ZN7QThread4execEv (libQt5Core.so.5)
#5  0x00007fe10de42059 n/a (libQt5Qml.so.5)
#6  0x00007fe10f68063c n/a (libQt5Core.so.5)
#7  0x00007fe110c3fa92 start_thread (libpthread.so.0)
#8  0x00007fe110d53cd3 __clone (libc.so.6)

Stack trace of thread 1296:
#0  0x00007fe110d491c6 ppoll (libc.so.6)
#1  0x00007fe10f88c82b _Z12qt_safe_pollP6pollfdmPK8timespec (libQt5Core.so.5)
#2  0x00007fe10f88dd0b _ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
#3  0x00007fe10f83a4dc _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#4  0x00007fe10f67f239 _ZN7QThread4execEv (libQt5Core.so.5)
#5  0x00007fe10d88eba6 n/a (libQt5DBus.so.5)
#6  0x00007fe10f68063c n/a (libQt5Core.so.5)
#7  0x00007fe110c3fa92 start_thread (libpthread.so.0)
#8  0x00007fe110d53cd3 __clone (libc.so.6)

Stack trace of thread 1287:
#0  0x00007fe0f5964382 n/a (i965_dri.so)
#1  0x00007fe0f5b82f48 n/a (i965_dri.so)
#2  0x00007fe0f59efe31 n/a (i965_dri.so)
#3  0x00007fe10e5f8e3e _ZNK4KWin8GLShader7compileEjjRK10QByteArray (libkwinglutils.so.12)
#4  0x00007fe10e5f94c5 _ZN4KWin8GLShader4loadERK10QByteArrayS3_ (libkwinglutils.so.12)
#5  0x00007fe10e5fe5f2 _ZN4KWin13ShaderManager20generateCustomShaderE6QFlagsINS_11ShaderTraitEERK10QByteArrayS6_ (libkwinglutils.so.12)
#6  0x00007fe10e5fe756 _ZN4KWin13ShaderManager14generateShaderE6QFlagsINS_11ShaderTraitEE (libkwinglutils.so.12)
#7  0x00007fe10e5fe87d _ZN4KWin13ShaderManager6shaderE6QFlagsINS_11ShaderTraitEE (libkwinglutils.so.12)
#8  0x00007fe10e5fe9ef _ZN4KWin13ShaderManager10pushShaderE6QFlagsINS_11ShaderTraitEE (libkwinglutils.so.12)
#9  0x00007fe10415fd51 n/a (KWinSceneOpenGL.so)
#10 0x00007fe1041600df _ZN4KWin11SceneOpenGL11createSceneEP7QObject (KWinSceneOpenGL.so)
#11 0x00007fe10416301b _ZNK4KWin13OpenGLFactory6createEP7QObject (KWinSceneOpenGL.so)
#12 0x00007fe110a95235 _ZN4KWin10Compositor33slotCompositingOptionsInitializedEv (libkwin.so.5)
#13 0x00007fe110a9618c _ZN4KWin10Compositor5setupEv (libkwin.so.5)
#14 0x00007fe10f866a82 _ZN7QObject5eventEP6QEvent (libQt5Core.so.5)
#15 0x00007fe110206da4 _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#16 0x00007fe11020e3c1 _ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#17 0x00007fe10f83b849 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#18 0x00007fe10f83e928 _ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (libQt5Core.so.5)
#19 0x00007fe10f88db7d _ZN20QEventDispatcherUNIX13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5)
#20 0x00007fe107eb0f3f n/a (libQt5XcbQpa.so.5)
#21 0x00007fe10f83a4dc _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#22 0x00007fe10f842596 _ZN16QCoreApplication4execEv (libQt5Core.so.5)
#23 0x00007fe110e27593 kdemain (libkdeinit5_kwin_x11.so)
#24 0x00007fe110c7cce3 __libc_start_main (libc.so.6)
#25 0x000055cc6d47a05e _start (kwin_x11)