Application: plasmashell (6.5.5)

ApplicationNotResponding [ANR]: false
Qt Version: 6.10.1
Frameworks Version: 6.22.0
Operating System: Linux 6.18.6-2-cachyos x86_64
Windowing System: Wayland
Distribution: CachyOS
DrKonqi: 6.5.5 [CoredumpBackend]

-- Information about the crash:
The monitor I have, an Asus PG32UCDM, has a built-in KVM switch with a keyboard and mouse hooked up to it. Displayport is being used for my Linux desktop. When I attach my work laptop running Windows 11 to the USB-C connection and work on it for an extended period of time, switching back to displayport and my Linux desktop causes the display to detect no signal from the RTX 4090. To remedy this, I have to unplug the displayport cable from the monitor and then reinsert it again to get it to detect a signal from the GPU. Doing so sometimes crashes the Plasmashell.

System Details:

Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.6-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor
Memory: 96 GiB of RAM (94.2 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 4090
Manufacturer: ASUS

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#7  0x00007f51f569379f in qAbort () at /usr/src/debug/qt6-base/qtbase/src/corelib/global/qassert.cpp:46
#8  qt_maybe_message_fatal<QString&> (msgType=QtFatalMsg, context=<optimized out>, message=...) at /usr/src/debug/qt6-base/qtbase/src/corelib/global/qlogging.cpp:2166
[...]
#10 0x00007f51f56946bb in QMessageLogger::fatal (this=<optimized out>, msg=0x7f51c8049760 "KWaylandBackend: no output modes available anymore, this seems like a compositor bug") at /usr/src/debug/qt6-base/qtbase/src/corelib/global/qlogging.cpp:901
#11 0x00007f51c8037156 in operator() () at /usr/src/debug/libkscreen/libkscreen-6.5.5/backends/kwayland/waylandoutputdevice.cpp:73
#12 operator() () at /usr/include/qt6/QtCore/qobjectdefs_impl.h:116
#14 call () at /usr/include/qt6/QtCore/qobjectdefs_impl.h:115
#15 call<QtPrivate::List<>, void> () at /usr/include/qt6/QtCore/qobjectdefs_impl.h:337
#16 impl () at /usr/include/qt6/QtCore/qobjectdefs_impl.h:547
#17 0x00007f51f57eb3d6 in QtPrivate::QSlotObjectBase::call (this=0x556af6960380, r=<optimized out>, a=0x7ffc9f2495a8, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobjectdefs_impl.h:461
#18 doActivate<false> (sender=<optimized out>, signal_index=<optimized out>, argv=<optimized out>) at /usr/src/debug/qt6-base/qtbase/src/corelib/kernel/qobject.cpp:4257
#19 0x00007f51f772d2ee in ffi_call_unix64 () at ../src/x86/unix64.S:104
#20 0x00007f51f77299f8 in ffi_call_int () at ../src/x86/ffi64.c:676
#21 0x00007f51f772c6ce in ffi_call () at ../src/x86/ffi64.c:713
#22 0x00007f51f844847a in wl_closure_invoke () at ../wayland-1.24.0/src/connection.c:1241
#23 0x00007f51f84492e9 in dispatch_event () at ../wayland-1.24.0/src/wayland-client.c:1707
#24 0x00007f51f84496bb in dispatch_queue () at ../wayland-1.24.0/src/wayland-client.c:1853


Reported using DrKonqi