Bug 490753

Application: plasmashell (6.1.3)

Qt Version: 6.7.2
Frameworks Version: 6.4.0
Operating System: Linux 6.9.9-200.fc40.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 40 (Forty)"
DrKonqi: 6.1.3 [CoredumpBackend]

-- Information about the crash:
KDE is constantly crashing when unplugging an external HDMI display over USB-C. I'm using Fedora 40 with Wayland, this started when I updated to Plasma 6.1.3.
Another symptom of this is that when the display is turned off due to inactivity, after turning it on (moving the mouse etc.), the external monitor locks to a 640x480 resolution and can only be fixed by unplugging and replugging it.
It doesn't matter if it's turned off or not, it still crashes KDE.

The crash can be reproduced every time.

-- Backtrace (Reduced):
#5  QtWaylandClient::QWaylandWindow::waylandScreen (this=this@entry=0x561c62ccc100) at /usr/src/debug/qt6-qtwayland-6.7.2-2.fc40.x86_64/src/client/qwaylandwindow.cpp:956
#6  0x00007fbe5c6deb9b in QtWaylandClient::QWaylandWindow::devicePixelRatio (this=0x561c62ccc100) at /usr/src/debug/qt6-qtwayland-6.7.2-2.fc40.x86_64/src/client/qwaylandwindow.cpp:1519
#7  QtWaylandClient::QWaylandWindow::scale (this=this@entry=0x561c62ccc100) at /usr/src/debug/qt6-qtwayland-6.7.2-2.fc40.x86_64/src/client/qwaylandwindow.cpp:1516
#8  0x00007fbe46cddfdb in QtWaylandClient::QWaylandEglWindow::updateSurface (this=0x561c62ccc100, create=true) at /usr/src/debug/qt6-qtwayland-6.7.2-2.fc40.x86_64/src/hardwareintegration/client/wayland-egl/qwaylandeglwindow.cpp:70
#9  0x00007fbe46cde973 in QtWaylandClient::QWaylandGLContext::makeCurrent (this=this@entry=0x7fbd9c0022e0, surface=<optimized out>) at /usr/src/debug/qt6-qtwayland-6.7.2-2.fc40.x86_64/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp:318


Reported using DrKonqi