Application: plasmashell (5.19.1) Qt Version: 5.14.2 Frameworks Version: 5.71.0 Operating System: Linux 5.3.0-59-generic x86_64 Windowing system: X11 Distribution: KDE neon User Edition 5.19 -- Information about the crash: - What I was doing when the application crashed: I recently installed KDE neon, this was the first time I booted after installing the nvidia-340 driver. After boot, the screen was black with a mouse pointer but no login screen. I switched to TTY2, logged in and ran "startx", which after a while (~20 seconds) showed the desktop. However, the desktop loaded very slowly, with first a dialog box for my Wifi password, then the owncloud client (don't know why, it had no errors), and only after that, the task bar and desktop wallpaper showed up. -- Backtrace: Application: Plasma (plasmashell), signal: Segmentation fault [KCrash Handler] #4 QOpenGLContext::isValid (this=0x0) at kernel/qopenglcontext.cpp:715 #5 0x00007f9d3be250b6 in QSGGuiThreadRenderLoop::renderWindow (this=this@entry=0x560bb8e302f0, window=<optimized out>) at scenegraph/qsgrenderloop.cpp:623 #6 0x00007f9d3be26e04 in QSGGuiThreadRenderLoop::exposureChanged (this=0x560bb8e302f0, window=<optimized out>) at scenegraph/qsgrenderloop.cpp:816 #7 0x00007f9d3853dc05 in QWindow::event (this=this@entry=0x560bb8e0b1f0, ev=ev@entry=0x7fffb9607df0) at kernel/qwindow.cpp:2363 #8 0x00007f9d3bead975 in QQuickWindow::event (this=0x560bb8e0b1f0, e=0x7fffb9607df0) at items/qquickwindow.cpp:1773 #9 0x00007f9d392799ac in QApplicationPrivate::notify_helper (this=this@entry=0x560bb8c256c0, receiver=receiver@entry=0x560bb8e0b1f0, e=e@entry=0x7fffb9607df0) at kernel/qapplication.cpp:3685 #10 0x00007f9d39280bb0 in QApplication::notify (this=0x7fffb9608230, receiver=0x560bb8e0b1f0, e=0x7fffb9607df0) at kernel/qapplication.cpp:3431 #11 0x00007f9d37f354a8 in QCoreApplication::notifyInternal2 (receiver=0x560bb8e0b1f0, event=0x7fffb9607df0) at kernel/qcoreapplication.cpp:1075 #12 0x00007f9d37f3568e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x560bb8e0b1f0, event=event@entry=0x7fffb9607df0) at kernel/qcoreapplication.cpp:1482 #13 0x00007f9d38533817 in QGuiApplicationPrivate::processExposeEvent (e=0x560bb9370010) at kernel/qguiapplication.cpp:3182 #14 0x00007f9d38533a7d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x560bb9370010) at kernel/qguiapplication.cpp:2003 #15 0x00007f9d3850c1cb in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1170 #16 0x00007f9d286fff9a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105 #17 0x00007f9d30e8f417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #18 0x00007f9d30e8f650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #19 0x00007f9d30e8f6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #20 0x00007f9d37f947ac in QEventDispatcherGlib::processEvents (this=0x560bb8c9fe70, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #21 0x00007f9d37f33d2a in QEventLoop::exec (this=this@entry=0x7fffb96080d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225 #22 0x00007f9d37f3d4a0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1383 #23 0x0000560bb82a20df in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:224 Possible duplicates by query: bug 408631, bug 401442, bug 398716, bug 398031, bug 396610. Reported using DrKonqi
After running sudo prime-select intel and rebooting, the error still occurred, although there was no pop-up that allowed me to file a bug report. My laptop still booted into a black screen with mouse pointer, and I had to switch TTY and start kde manually. After removing the nvidia-340 package completely and rebooting, it booted successfully and it showed the login screen.
Created attachment 129747 [details] New crash information added by DrKonqi plasmashell (5.19.2) using Qt 5.14.2 - What I was doing when the application crashed: starting my system up as soon as it starts the menu taskpar and systray disappears and rePPERS TWICE THEN report bug option comes up -- Backtrace (Reduced):
*** This bug has been marked as a duplicate of bug 415016 ***