Application: plasmashell (5.18.5)

Qt Version: 5.14.2
Frameworks Version: 5.70.0
Operating System: Linux 5.3.0-53-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.18

-- Information about the crash:
- What I was doing when the application crashed:
Clicked on application launcher then all went dark.

Unusual behaviour:
transparant background are black after wakeup fron sleep. Then this crash. Possibly related to sleep.

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#4  0x00007f049f6d2d74 in QScreen::handle (this=0x55e0ff8e5ee0) at kernel/qscreen.cpp:158
#5  0x00007f049261bb18 in QXcbIntegration::createPlatformOpenGLContext (this=<optimized out>, context=0x7f048800f270) at qxcbintegration.cpp:279
#6  0x00007f049f6ee99f in QOpenGLContext::create (this=0x7f048800f270) at kernel/qopenglcontext.cpp:612
#7  0x00007f04a2fc2219 in QSGRenderThread::sync (this=this@entry=0x55e101b4ad90, inExpose=inExpose@entry=true, inGrab=inGrab@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:615
#8  0x00007f04a2fc4522 in QSGRenderThread::syncAndRender (this=this@entry=0x55e101b4ad90, grabImage=grabImage@entry=0x0) at scenegraph/qsgthreadedrenderloop.cpp:764


Possible duplicates by query: bug 420597, bug 419401, bug 418690, bug 416327, bug 415955.

Reported using DrKonqi