I can still start prgogramms with Alt-F2, but plasma is crashing imideatly after starting.
If I start as user in a terminal it gives me:
h@h-systemproductname:~$ plasmashell
KPackageStructure of KPluginMetaData(pluginId:"org.kde.merkuro.contact.applet", fileName: "/usr/share/plasma/plasmoids/org.kde.merkuro.contact.applet/metadata.json") does not match requested format "Plasma/Applet"
KPackageStructure of KPluginMetaData(pluginId:"org.giants.desktop.defaultPanel", fileName: "/usr/share/plasma/layout-templates/org.giants.desktop.defaultPanel/metadata.json") does not match requested format "Plasma/LayoutTemplate"
kf.plasma.quick: Applet preload policy set to 1
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:178:25: QML FolderViewDropArea (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumWidth":
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:201:9
Toolbox not loading, toolbox package is either invalid or disabled.
qt.core.qabstractitemmodel.checkindex: Index QModelIndex(-1,-1,0x0,QObject(0x0)) is not valid (expected valid)
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:178:25: QML FolderViewDropArea (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumWidth":
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:201:9
Toolbox not loading, toolbox package is either invalid or disabled.
org.kde.plasma.notificationmanager: Trying to replace notification with id 1 which doesn't exist, creating a new one. This is an application bug!
org.kde.plasma.notificationmanager: Trying to replace notification with id 2 which doesn't exist, creating a new one. This is an application bug!
org.kde.plasma.notificationmanager: Trying to replace notification with id 3 which doesn't exist, creating a new one. This is an application bug!
org.kde.plasma.notificationmanager: Trying to replace notification with id 4 which doesn't exist, creating a new one. This is an application bug!
org.kde.plasma.notificationmanager: Trying to replace notification with id 5 which doesn't exist, creating a new one. This is an application bug!
KCrash: Attempting to start /usr/bin/plasmashell
KCrash: Application 'plasmashell' crashing... crashRecursionCounter = 2
KCrash: Application Name = plasmashell path = /usr/bin pid = 59391
KCrash: Arguments: /usr/bin/plasmashell
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi
QSocketNotifier: Invalid socket 6 and type 'Read', disabling...
QSocketNotifier: Invalid socket 20 and type 'Read', disabling...
KPackageStructure of KPluginMetaData(pluginId:"org.kde.merkuro.contact.applet", fileName: "/usr/share/plasma/plasmoids/org.kde.merkuro.contact.applet/metadata.json") does not match requested format "Plasma/Applet"
KPackageStructure of KPluginMetaData(pluginId:"org.giants.desktop.defaultPanel", fileName: "/usr/share/plasma/layout-templates/org.giants.desktop.defaultPanel/metadata.json") does not match requested format "Plasma/LayoutTemplate"
kf5idletime_wayland: This plugin does not support polling idle time
kf.plasma.quick: Applet preload policy set to 1
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:178:25: QML FolderViewDropArea (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumWidth":
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:201:9
Toolbox not loading, toolbox package is either invalid or disabled.
qt.core.qabstractitemmodel.checkindex: Index QModelIndex(-1,-1,0x0,QObject(0x0)) is not valid (expected valid)
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:178:25: QML FolderViewDropArea (parent or ancestor of QQuickLayoutAttached): Binding loop detected for property "minimumWidth":
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:201:9
Toolbox not loading, toolbox package is either invalid or disabled.
[1]+ Angehalten plasmashell
The last sentence is refering "toolbox", but I cannot find such a package
I checked /var/log/apt.
The last DU removed:
Remove: qml-module-qtwebkit:amd64 (5.212.0~alpha4-42+b2), libqt5webkit5:amd64 (5.212.0~alpha4-42+b2), liblayershellqtinterface5:amd64 (5.27.11-1+b2)