Created attachment 118534 [details] Crash Plasma Report SUMMARY plasma desktop flashout in black really quick then come back STEPS TO REPRODUCE 1. React with widgets in panels SOFTWARE/OS VERSIONS kubuntu 18.04 LTS KDE Plasma 5.12.7 KDE Frameworks 5.44.0 Qt 5.9.5 Kernel 4.15.0-45-generic OS 64-bit Processors 4 x Intel Core i5-3210m Memory 3.7 GiB RAM GPU Nvidia GT635M, Intel 3rd Generation Important Related Info Desktop Compositor Scale: Accurate, Rendering backend: OpenGL 3.1
Thread 15 (Thread 0x7fa6bbfff700 (LWP 2796)): [KCrash Handler] #6 0x00007fa7c881a640 in QSGSimpleTextureNode::texture() const () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #7 0x00007fa70c828963 in () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so #8 0x00007fa7c4cd36cf in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007fa7c889ca30 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007fa7c8847bbc in () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #11 0x00007fa7c884cac8 in () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #12 0x00007fa7c4ac616d in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #13 0x00007fa7c3c476db in start_thread (arg=0x7fa6bbfff700) at pthread_create.c:463 #14 0x00007fa7c43c188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Probably the plotter again. Do you have a system load viewer plasmoid or something added?
(In reply to Kai Uwe Broulik from comment #2) > Probably the plotter again. Do you have a system load viewer plasmoid or > something added? The recent crash was with the network-manager in the panel trying to disconnect a bridge connection from menu of connected devices, the crash before this one I was just clicking on battery in panel all in are system tray widget. there are other before but don't remember what I was doing. for me it is not so frequent, I guess it happens only when multiple mouse clicks reacting with panel or widgets so it crash handling them.
(In reply to Kai Uwe Broulik from comment #1) > Thread 15 (Thread 0x7fa6bbfff700 (LWP 2796)): > [KCrash Handler] > #6 0x00007fa7c881a640 in QSGSimpleTextureNode::texture() const () at > /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 > #7 0x00007fa70c828963 in () at > /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/ > libkquickcontrolsaddonsplugin.so > #8 0x00007fa7c4cd36cf in QMetaObject::activate(QObject*, int, int, void**) > () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 > #9 0x00007fa7c889ca30 in QQuickWindowPrivate::renderSceneGraph(QSize > const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 > #10 0x00007fa7c8847bbc in () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 > #11 0x00007fa7c884cac8 in () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 > #12 0x00007fa7c4ac616d in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 > #13 0x00007fa7c3c476db in start_thread (arg=0x7fa6bbfff700) at > pthread_create.c:463 > #14 0x00007fa7c43c188f in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 what this say ? what is libQt5Quick responsible for ? I guess something to do with Rendering backend: OpenGL 3.1 !, It is not disturbing my experience with KDE plasma, just happened 3 or 4 times, KDE is an amazing desktop beast, no problem for me at all. hope this get fixed next releases of KDE plasma.
*** This bug has been marked as a duplicate of bug 403727 ***