(In reply to David Edmundson from comment #4) > If plasmashell crashes I need a backtrace. > > You should see a sad face icon in the systemtray which will open the crash > reported. > > Any warnings to the command line are generally completely irrelevant to the > crash at hand. Unfortunately DrKonqui didn't do anything - there wasn't a System Tray - just a blank, black, screen; which was responding to KRunner - I was able to start Konsole sessions and Firefox. A Ksmserver shortcut for Logout, connected to a keyboard key, also worked OK. Apr 23 08:55:28 xxx plasmashell[4942]: "Message recipient disconnected from message bus without replying" Apr 23 08:55:28 xxx drkonqi[4943]: found lsb_release Apr 23 08:55:28 xxx drkonqi[4943]: Using /proc to determine executable path Apr 23 08:55:28 xxx drkonqi[4943]: Executable is: "/usr/bin/plasmashell" Apr 23 08:55:28 xxx drkonqi[4943]: Executable exists: true Apr 23 08:55:28 xxx drkonqi[4943]: Enabling drkonqi crash catching Apr 23 08:55:30 xxx kdeinit5[4378]: Delayed initialization. Apr 23 08:55:30 xxx kdeinit5[4378]: Reloading the khotkeys configuration Apr 23 08:55:30 xxx kdeinit5[4378]: Version 2 File! Apr 23 08:55:30 xxx kdeinit5[4378]: true Apr 23 08:55:30 xxx kdeinit5[4378]: Imported file "/usr/share/khotkeys/defaults.khotkeys" Apr 23 08:55:30 xxx drkonqi[4943]: Sending SIGSTOP to process Apr 23 08:55:30 xxx kdeinit5[4378]: Imported file "/usr/share/khotkeys/kde32b1.khotkeys" . . . Apr 23 08:55:30 xxx kdeinit5[4378]: Registering ":1.80/StatusNotifierItem" to system tray Apr 23 08:55:31 xxx kwin_x11[4420]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 61652, resource id: 44040210, major code: 18 (ChangeProperty), minor code: 0 Apr 23 08:55:31 xxx kwin_x11[4420]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 61656, resource id: 44040212, major code: 18 (ChangeProperty), minor code: 0 Apr 23 08:55:31 xxx kwin_x11[4420]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 61657, resource id: 44040210, major code: 12 (ConfigureWindow), minor code: 0 Apr 23 08:55:31 xxx kwin_x11[4420]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 61661, resource id: 44040214, major code: 18 (ChangeProperty), minor code: 0 Apr 23 08:55:31 xxx kwin_x11[4420]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 61665, resource id: 6291459, major code: 18 (ChangeProperty), minor code: 0 Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:22 xxx krunner[4423]: file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Plasma/TextFieldStyle.qml:49:17: QML QQuickItem: Binding loop detected for property "implicitHeight" Apr 23 08:56:28 xxx drkonqi[4943]: Sending SIGCONT to process Apr 23 08:56:28 xxx kdeinit5[4378]: Service ":1.80" unregistered Apr 23 08:56:28 xxx kwin_x11[4420]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 63474, resource id: 46137349, major code: 18 (ChangeProperty), minor code: 0 Apr 23 08:56:29 xxx systemd[1]: Created slice system-systemd\x2dcoredump.slice. Apr 23 08:56:29 xxx systemd[1]: Started Process Core Dump (PID 5027/UID 0). Apr 23 08:56:29 xxx systemd-coredump[5028]: Resource limits disable core dumping for process 4425 (plasmashell). Apr 23 08:56:29 xxx systemd-coredump[5028]: Process 4425 (plasmashell) of user 1000 dumped core. ------------------------------------------------------------- I'll take a look at the "Resource limits disable core dumping" issue.