Created attachment 156440 [details] the kcrash report file I logged out and KDE crashed. I have no idea what happened, it's working fine now but I figured I should submit the bug report.
Pasting inline for searchability: Application: kded5 (kded5), signal: Segmentation fault [KCrash Handler] #4 0x00007f5b11232270 in KScreen::Output::id() const () from /lib64/libKF5Screen.so.8 #5 0x00007f5b112251f8 in KScreen::Config::setOutputPriority(QSharedPointer<KScreen::Output> const&, unsigned int) () from /lib64/libKF5Screen.so.8 #6 0x00007f5b1122eca2 in KScreen::SetConfigOperation::start() () from /lib64/libKF5Screen.so.8 #7 0x00007f5b43707d00 in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5 #8 0x00007f5b445a544e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5 #9 0x00007f5b436dc1e8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5 #10 0x00007f5b436df181 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5 #11 0x00007f5b43734413 in ?? () from /lib64/libQt5Core.so.5 #12 0x00007f5b42469a90 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0 #13 0x00007f5b42469e48 in ?? () from /lib64/libglib-2.0.so.0 #14 0x00007f5b42469edc in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #15 0x00007f5b43733c16 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #16 0x00007f5b436dac5b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5 #17 0x00007f5b436e2dc6 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5 #18 0x0000562321677976 in ?? () #19 0x00007f5b42e2caf0 in __libc_start_call_main () from /lib64/libc.so.6 #20 0x00007f5b42e2cbb9 in __libc_start_main_impl () from /lib64/libc.so.6 #21 0x0000562321677b75 in ?? () [Inferior 1 (process 1579) detached]
*** This bug has been marked as a duplicate of bug 464590 ***