Application: KWin (kwin_x11), signal: Segmentation fault Using host libthread_db library "/lib/libthread_db.so.1". [Current thread is 1 (Thread 0x7f8a41a0d880 (LWP 13698))] Thread 8 (Thread 0x7f8a0885b700 (LWP 13830)): #0 0x00007f8a41383c12 in ppoll () at /lib/libc.so.6 #1 0x00007f8a3e957849 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f8a3e958c9e in QEventDispatcherUNIX::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5 #3 0x00007f8a3e9096fb in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5 #4 0x00007f8a3e74c5a6 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f8a38d32905 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f8a3e74d7e3 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #8 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 7 (Thread 0x7f8a0905c700 (LWP 13829)): #0 0x00007f8a3a369a5c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib/libpthread.so.0 #1 0x00007f8a0a1de65b in () at /usr/lib/dri/i965_dri.so #2 0x00007f8a0a1de2c7 in () at /usr/lib/dri/i965_dri.so #3 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #4 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 6 (Thread 0x7f89fbfff700 (LWP 13733)): #0 0x00007f8a3a369a5c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib/libpthread.so.0 #1 0x00007f8a3d64592a in () at /usr/lib/libQt5Script.so.5 #2 0x00007f8a3d645949 in () at /usr/lib/libQt5Script.so.5 #3 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #4 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 5 (Thread 0x7f8a0985d700 (LWP 13730)): #0 0x00007f8a3a369a5c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib/libpthread.so.0 #1 0x00007f8a0a1de65b in () at /usr/lib/dri/i965_dri.so #2 0x00007f8a0a1de2c7 in () at /usr/lib/dri/i965_dri.so #3 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #4 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 4 (Thread 0x7f8a17fff700 (LWP 13708)): #0 0x00007f8a41383c12 in ppoll () at /lib/libc.so.6 #1 0x00007f8a3e957849 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f8a3e958c9e in QEventDispatcherUNIX::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5 #3 0x00007f8a3e9096fb in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5 #4 0x00007f8a3e74c5a6 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f8a38d32905 in () at /usr/lib/libQt5Qml.so.5 #6 0x00007f8a3e74d7e3 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #8 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 3 (Thread 0x7f8a1ebb0700 (LWP 13703)): #0 0x00007f8a41383c12 in ppoll () at /lib/libc.so.6 #1 0x00007f8a3e957849 in qt_safe_poll(pollfd*, unsigned long, timespec const*) () at /usr/lib/libQt5Core.so.5 #2 0x00007f8a3e958c9e in QEventDispatcherUNIX::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5 #3 0x00007f8a3e9096fb in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5 #4 0x00007f8a3e74c5a6 in QThread::exec() () at /usr/lib/libQt5Core.so.5 #5 0x00007f8a37b9d4a5 in () at /usr/lib/libQt5DBus.so.5 #6 0x00007f8a3e74d7e3 in () at /usr/lib/libQt5Core.so.5 #7 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #8 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 2 (Thread 0x7f8a24ead700 (LWP 13701)): #0 0x00007f8a41383b39 in poll () at /lib/libc.so.6 #1 0x00007f8a3e475827 in () at /usr/lib/libxcb.so.1 #2 0x00007f8a3e4773ba in xcb_wait_for_event () at /usr/lib/libxcb.so.1 #3 0x00007f8a25db0af8 in () at /usr/lib/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5 #4 0x00007f8a3e74d7e3 in () at /usr/lib/libQt5Core.so.5 #5 0x00007f8a3a363bf5 in start_thread () at /lib/libpthread.so.0 #6 0x00007f8a4138db7f in clone () at /lib/libc.so.6 Thread 1 (Thread 0x7f8a41a0d880 (LWP 13698)): [KCrash Handler] #6 0x00007f8a0a23fa94 in () at /usr/lib/dri/i965_dri.so #7 0x00007f8a0a15e6b4 in () at /usr/lib/dri/i965_dri.so #8 0x00007f8a0a1d66fa in () at /usr/lib/dri/i965_dri.so #9 0x00007f8a2e9e603b in () at /usr/lib/libEGL.so.1 #10 0x00007f8a2e9d50f4 in eglMakeCurrent () at /usr/lib/libEGL.so.1 #11 0x00007f8a1e19e50e in non-virtual thunk to KWin::AbstractEglBackend::makeCurrent() () at /usr/lib/qt5/plugins/org.kde.kwin.platforms/KWinX11Platform.so #12 0x00007f8a0ae2268f in KWin::SceneOpenGL::paint(QRegion, QList) () at /usr/lib/qt5/plugins/org.kde.kwin.scenes/KWinSceneOpenGL.so #13 0x00007f8a40efb4ab in KWin::Compositor::performCompositing() () at /usr/lib/libkwin.so.5 #14 0x00007f8a3e933dbb in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5 #15 0x00007f8a3f696b81 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #16 0x00007f8a3f69daa0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5 #17 0x00007f8a3e90a9f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5 #18 0x00007f8a3e95aae3 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5 #19 0x00007f8a3e958e10 in QEventDispatcherUNIX::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5 #20 0x00007f8a25db1cde in () at /usr/lib/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5 #21 0x00007f8a3e9096fb in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5 #22 0x00007f8a3e91139e in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5 #23 0x00007f8a4165c3d4 in kdemain () at /usr/lib/libkdeinit5_kwin_x11.so #24 0x00007f8a412bcfbb in __libc_start_main () at /lib/libc.so.6 #25 0x000000000040060a in _start () [Inferior 1 (process 13698) detached]