Mal probehalber lightdm installiert, hier flackert nichts am Loginscreen. Hier dauert der Loginvorgang vom lightdm (Passworteingabe) bis zum KDE-Desktop mehr als eine Minute.
Also extrem langsam ohne erkennbaren Fehler warum das so lange dauert. Die .xession-error des Users listet folgendes:
grep -i error .xsession-errors
Qt: Session management error: networkIdsList argument is NULL
QXcbConnection: XCB error: 3 (BadWindow), sequence: 899, resource id: 52428804, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 903, resource id: 50331652, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 907, resource id: 54525956, major code: 18 (ChangeProperty), minor code: 0
org.kde.kcm_keyboard: Failed to open layout memory xml file for reading "/home/michael/.local/share/kded5/keyboard/session/layout_memory.xml" error: 5
QXcbConnection: XCB error: 3 (BadWindow), sequence: 946, resource id: 14680072, major code: 18 (ChangeProperty), minor code: 0
akonadicore_log: Socket error occurred: "QLocalSocket::connectToServer: Connection refused"
akonadicore_log: Socket error occurred: "QLocalSocket::connectToServer: Connection refused"
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:362: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:363: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:364: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:365: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:362: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:363: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:364: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:365: TypeError: Cannot read property 'padding' of null
error activating kdeconnectd: QDBusError("", "")
error activating kdeconnectd: QDBusError("", "")
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:365: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:364: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:363: TypeError: Cannot read property 'padding' of null
file:///usr/lib/i386-linux-gnu/qt5/qml/QtQuick/Controls/ScrollView.qml:362: TypeError: Cannot read property 'padding' of null
QXcbConnection: XCB error: 3 (BadWindow), sequence: 2032, resource id: 4194324, major code: 18 (ChangeProperty), minor code: 0
error activating kdeconnectd: QDBusError("", "")
error activating kdeconnectd: QDBusError("", "")
BluezQt: PendingCall Error: "Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms)"