https://bugs.kde.org/show_bug.cgi?id=489632
--- Comment #4 from akhtab...@protonmail.com ---
after getting debug symbols in:
```
Core was generated by `/run/wrappers/bin/kwin_wayland --wayland-fd 7 --socket
wayland-0 --xwayland-fd'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007eff057d9609 in QMetaObjectPrivate::disconnect(QObject const*, int,
QMetaObject const*, QObject const*, int, void**,
QMetaObjectPrivate::DisconnectType) ()
from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
[Current thread is 1 (Thread 0x7efeff43db00 (LWP 2580))]
(gdb) backtrace
#0 0x00007eff057d9609 in QMetaObjectPrivate::disconnect(QObject const*, int,
QMetaObject const*, QObject const*, int, void**,
QMetaObjectPrivate::DisconnectType) ()
from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#1 0x00007eff057d9f3a in QObject::disconnectImpl(QObject const*, void**,
QObject const*, void**, QMetaObject const*) ()
from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#2 0x00007eff08c73ca9 in QObject::disconnect<void (KWin::Output::*)(), void
(KWin::Window::*)()> (
slot=(void (KWin::Window::*)(KWin::Window * const)) 0x7eff08c73a80
<KWin::Window::updatePreferredBufferScale()>, receiver=0x64ee7e0,
signal=(void (KWin::Output::*)(KWin::Output * const)) 0x7eff08a1fbb0
<KWin::Output::scaleChanged()>, sender=<optimized out>)
at
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/include/QtCore/qobject.h:306
#3 KWin::Window::setMoveResizeOutput (this=0x64ee7e0, output=0x5c928e0)
at /build/kwin-6.1.1.2/src/window.cpp:3322
#4 0x00007eff08c73f8d in KWin::Window::setMoveResizeGeometry (this=0x64ee7e0,
geo=...)
at /build/kwin-6.1.1.2/src/window.cpp:3307
#5 0x00007eff08cbab0a in KWin::XdgSurfaceWindow::handleNextWindowGeometry (
this=this@entry=0x64ee7e0) at
/build/kwin-6.1.1.2/src/xdgshellwindow.cpp:233
#6 0x00007eff08cbacbe in KWin::XdgSurfaceWindow::handleCommit (this=0x64ee7e0)
at /build/kwin-6.1.1.2/src/xdgshellwindow.cpp:154
#7 0x00007eff057e4da0 in void doActivate<false>(QObject*, int, void**) ()
from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#8 0x00007eff08e52028 in KWin::SurfaceInterfacePrivate::applyState
(this=0x501a940,
next=0x50780c0) at /build/kwin-6.1.1.2/src/wayland/surface.cpp:729
#9 0x00007eff08e809d2 in KWin::Transaction::apply (this=0x6224190)
at /build/kwin-6.1.1.2/src/wayland/transaction.cpp:229
#10 0x00007eff08e8055c in KWin::Transaction::tryApply
(this=this@entry=0x6224190)
at /build/kwin-6.1.1.2/src/wayland/transaction.cpp:262
#11 0x00007eff08e82483 in KWin::Transaction::commit (this=this@entry=0x6224190)
at /build/kwin-6.1.1.2/src/wayland/transaction.cpp:296
#12 0x00007eff08e508f0 in KWin::SurfaceInterfacePrivate::surface_commit
(this=0x501a940,
resource=<optimized out>) at
/build/kwin-6.1.1.2/src/wayland/surface.cpp:379
#13 0x00007eff04a0c052 in ffi_call_unix64 ()
from
/nix/store/nj9g42fdsm8l2z43kfcahch3px2q209a-libffi-3.4.6/lib/libffi.so.8
#14 0x00007eff04a09ee5 in ffi_call_int ()
from
/nix/store/nj9g42fdsm8l2z43kfcahch3px2q209a-libffi-3.4.6/lib/libffi.so.8
#15 0x00007eff04a0aad8 in ffi_call ()
from
/nix/store/nj9g42fdsm8l2z43kfcahch3px2q209a-libffi-3.4.6/lib/libffi.so.8
#16 0x00007eff094ca841 in wl_closure_invoke (closure=0x61a1600,
flags=<optimized out>,
target=<optimized out>, opcode=6, data=<optimized out>) at
../src/connection.c:1025
#17 0x00007eff094c5c4b in wl_client_connection_data (fd=<optimized out>,
mask=<optimized out>, data=0x5ef0420) at ../src/wayland-server.c:438
#18 0x00007eff094c88f2 in wl_event_loop_dispatch (loop=0x4d6e960,
timeout=<optimized out>)
at ../src/event-loop.c:1034
#19 0x00007eff08de1122 in KWin::Display::dispatchEvents (this=<optimized out>)
at /build/kwin-6.1.1.2/src/wayland/display.cpp:118
#20 0x00007eff057e4da0 in void doActivate<false>(QObject*, int, void**) ()
from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
--Type <RET> for more, q to quit, c to continue without paging--
e, QSocketNotifier::QPrivateSignal) () from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#22 0x00007eff057f2585 in QSocketNotifier::event(QEvent*) () from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#23 0x00007eff06b94d21 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Widgets.so.6
#24 0x00007eff05781c10 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#25 0x00007eff0592f4ce in
QEventDispatcherUNIXPrivate::activateSocketNotifiers() () from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#26 0x00007eff0592fb71 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#27 0x00007eff064e27ed in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Gui.so.6
#28 0x00007eff0578e9d3 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#29 0x00007eff0578ab66 in QCoreApplication::exec() () from
/nix/store/4qrmlniaj7x49sl6i1w4c2sjjdx00ghh-qtbase-6.7.2/lib/libQt6Core.so.6
#30 0x00000000004451b5 in main (argc=<optimized out>, argv=<optimized out>) at
/build/kwin-6.1.1.2/src/main_wayland.cpp:642
```
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