Backtrace using coredumpctl gdb lxqt-config-mon - where #0 0x00007fedb9430930 in KScreen::Config::outputs() const () from /lib64/libKF6Screen.so.8 #1 0x000056150392127b in applySettings (config=..., monitors=...) at /usr/include/qt6/QtCore/qsharedpointer_impl.h:274 #2 0x0000561503923135 in LoadSettings::applyBestSettings()::{lambda(KScreen::ConfigOperation*)#1}::operator()(KScreen::ConfigOperation*) const () at /usr/src/debug/lxqt-config-2.0.0/lxqt-config-monitor/loadsettings.cpp:72 #3 0x00007fedb79e8130 in ?? () from /lib64/libQt6Core.so.6 #4 0x00007fedb943775f in KScreen::ConfigOperation::finished(KScreen::ConfigOperation*) () from /lib64/libKF6Screen.so.8 #5 0x00007fedb9437840 in ?? () from /lib64/libKF6Screen.so.8 #6 0x00007fedb79d1fbb in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6 #7 0x00007fedb798ee20 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6 #8 0x00007fedb798f180 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6 #9 0x00007fedb7bc2973 in ?? () from /lib64/libQt6Core.so.6 #10 0x00007fedb7712740 in ?? () from /lib64/libglib-2.0.so.0 #11 0x00007fedb7714388 in ?? () from /lib64/libglib-2.0.so.0 #12 0x00007fedb7714a3c in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #13 0x00007fedb7bc147c in QEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) () from /lib64/libQt6Core.so.6 #14 0x00007fedb799959b in QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) () from /lib64/libQt6Core.so.6 #15 0x00007fedb7992da6 in QCoreApplication::exec() () from /lib64/libQt6Core.so.6 #16 0x000056150390ec10 in main (argc=, argv=) at /usr/src/debug/lxqt-config-2.0.0/lxqt-config-monitor/main.cpp:48