Missing panel at start - plasmashell errors

Hi all, I’m new on Manjaro
I did a clean install from latest release. In the live system everything worked great.
Now I am always missing the panel if I’m rebooting or log off and on again.

I found a workaround to get it fixed, using

killall plasmashell

and restart it with

plasmashell

again.

While doing this, I get tons of errors and I don’t know how to fix it.

> kf.plasma.quick: Applet preload policy set to 1
> Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:38:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:76:9: Unable to assign [undefined] to QStringList
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:75:9: Unable to assign [undefined] to int
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:75:9: Unable to assign [undefined] to int
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:76:9: Unable to assign [undefined] to QStringList
> Cyclic dependency detected between "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml" and "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml"
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:1092:17: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:1084:17: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:1076:17: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:1068:17: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:209:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:170:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderView.qml:161:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderViewLayer.qml:191:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderViewLayer.qml:167:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:344:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:274:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> qt.svg: <input>:406:376: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:407:126: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:408:126: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:408:385: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:409:125: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:410:124: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:411:125: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:411:371: Could not add child element to parent element because the types are incorrect.
> qt.svg: <input>:411:619: Could not add child element to parent element because the types are incorrect.
> file:///usr/share/plasma/packages/org.kde.desktoptoolbox/contents/ui/ToolBoxRoot.qml:38:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:188:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> trying to show an empty dialog
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:76:9: Unable to assign [undefined] to QStringList
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:75:9: Unable to assign [undefined] to int
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> Error: cannot change the containment to AppletsLayout
> Plasma Shell startup completed
> file:///usr/share/plasma/plasmoids/org.kde.plasma.pager/contents/ui/main.qml:156:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/MouseHandler.qml:49:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/MouseHandler.qml:49:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/main.qml:341:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/main.qml:330:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/main.qml:196:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:285:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:285:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:285:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.systemtray/contents/ui/main.qml:57:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/main.qml:101:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> Both point size and pixel size set. Using pixel size.
> Both point size and pixel size set. Using pixel size.
> Both point size and pixel size set. Using pixel size.
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:84:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:76:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/applet/CompactApplet.qml:143:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/applet/CompactApplet.qml:138:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:524:9: QML Label: Binding loop detected for property "height"
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:483:13: QML Label: Binding loop detected for property "height"
> trying to show an empty dialog
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/applet/CompactApplet.qml:143:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/applet/CompactApplet.qml:138:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> trying to show an empty dialog
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:483:13: QML Label: Binding loop detected for property "height"
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:524:9: QML Label: Binding loop detected for property "height"
> file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/DigitalClock.qml:544:5: QML Label: Binding loop detected for property "height"
> file:///usr/share/plasma/packages/org.kde.paneltoolbox/contents/ui/main.qml:89:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> Qt Quick Layouts: Detected recursive rearrange. Aborting after two iterations.
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/packages/org.kde.paneltoolbox/contents/ui/main.qml:89:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.systemtray/contents/ui/main.qml:40:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> Cyclic dependency detected between "file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml" and "file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationHeader.qml"
> file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml:556:41: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> org.kde.klipper: Failed to load history resource. Clipboard history cannot be read. :  History file does not exist
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/PlasmoidPopupsContainer.qml:75:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/HiddenItemsView.qml:73:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/BusyIndicatorStyle.qml:39:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> Both point size and pixel size set. Using pixel size.
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/BusyIndicatorStyle.qml:39:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:73:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:89:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:73:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Panel.qml:89:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> Both point size and pixel size set. Using pixel size.
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:76:9: Unable to assign [undefined] to QStringList
> file:///usr/share/plasma/wallpapers/org.kde.image/contents/ui/main.qml:75:9: Unable to assign [undefined] to int
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> kf.package: No metadata file in the package, expected it at: "/usr/share/wallpapers/Breath2/contents/images/"
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:101:5: QML Binding: Not restoring previous value because restoreMode has not been set.
> This behavior is deprecated.
> You have to import QtQml 2.15 after any QtQuick imports and set
> the restoreMode of the binding to fix this warning.
> In Qt < 6.0 the default is Binding.RestoreBinding.
> In Qt >= 6.0 the default is Binding.RestoreBindingOrValue.
> 
> Error: cannot change the containment to AppletsLayout
> Both point size and pixel size set. Using pixel size.
> Both point size and pixel size set. Using pixel size.
> Both point size and pixel size set. Using pixel size.
> Both point size and pixel size set. Using pixel size.
> trying to show an empty dialog
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
> KAStatsFavoritesModel::setFavorites is ignored
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/FullRepresentation.qml:442:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/KickoffListView.qml:57:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/FavoritesView.qml:117:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> Entry is not valid "libreoffice-writer.desktop" QSharedPointer(0x562ad8355710)
> Entry is not valid "cantata.desktop" QSharedPointer(0x562ad8355710)
> Entry is not valid "kde4-digikam.desktop" QSharedPointer(0x562ad8355710)
> Entry is not valid "libreoffice-writer.desktop" QSharedPointer(0x562ad8355710)
> Entry is not valid "cantata.desktop" QSharedPointer(0x562ad8355710)
> Entry is not valid "kde4-digikam.desktop" QSharedPointer(0x562ad8355710)
> trying to show an empty dialog
> trying to show an empty dialog
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
> file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height"
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/BusyIndicatorStyle.qml:39:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/FullRepresentation.qml:50:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/TabButton.qml:102:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> qrc:/plasma/plasmoids/org.kde.plasma.networkmanagement/contents/ui/PopupDialog.qml:126:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> qrc:/plasma/plasmoids/org.kde.plasma.networkmanagement/contents/ui/Toolbar.qml:160:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/org/kde/plasma/components/Button.qml:52: ReferenceError: PlasmaCore is not defined
> file:///usr/lib/qt/qml/org/kde/plasma/components/Button.qml:52: ReferenceError: PlasmaCore is not defined
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.battery/contents/ui/PopupDialog.qml:100:17: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.battery/contents/ui/PopupDialog.qml:79:17: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ToolButtonStyle.qml:209:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.devicenotifier/contents/ui/FullRepresentation.qml:107:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.devicenotifier/contents/ui/FullRepresentation.qml:87:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> trying to show an empty dialog
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2354, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2355, resource id: 79691910, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2356, resource id: 79691910, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2357, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2358, resource id: 79691912, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2359, resource id: 79691912, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2360, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2361, resource id: 79691914, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2362, resource id: 79691914, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2363, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2364, resource id: 79691916, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2365, resource id: 79691916, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2366, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2367, resource id: 79691918, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2368, resource id: 79691918, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2369, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2370, resource id: 79691920, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2371, resource id: 79691920, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2372, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2373, resource id: 79691922, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2374, resource id: 79691922, major code: 72 (PutImage), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 2 (BadValue), sequence: 2375, resource id: 0, major code: 53 (CreatePixmap), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2376, resource id: 79691924, major code: 55 (CreateGC), minor code: 0
> qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 2377, resource id: 79691924, major code: 72 (PutImage), minor code: 0
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/BusyIndicatorStyle.qml:39:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:285:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> 
> (process:3699): GLib-GIO-WARNING **: 21:37:22.809: /etc/xdg/kde-mimeapps.list contains a [Added Associations] group, but it is not permitted here.  Only the non-desktop-specific mimeapps.list file may add or remove associations.
> Gtk-Message: 21:37:22.835: Failed to load module "appmenu-gtk-module"
> file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:285:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/ComputerView.qml:48:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/ComputerView.qml:40:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/lib/qt/qml/QtQuick/Controls/Styles/Plasma/ScrollViewStyle.qml:60:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/KickoffListView.qml:57:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
> file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/BaseView.qml:49:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }

Anyone out there able to help me?
(sorry for my worse english)

Thanks in advance

Hello,

Use this command from terminal to update everything and reinstall (in case something got broken) KDE Plasma related packages:

sudo pacman-mirrors -f && sudo pacman -Syyu plasma-desktop plasma-framework kf5 qt5-base

Reboot after that, add a new panel if is missing, check Desktop Session to start with an Empty Session, reboot again and see if the Panel is loading, then you can change back the session if you prefer to load the saved session …

1 Like

Hi @bogdancovaciu
thanks for the idea, sadly it is completely the same as before. I can’t add a new panel and the panel is gone after reboot or log off/on.
Only thing that is working is

killall plasmashell

and

plasmashell &

What if you create a new user and test?
(its possible your profile/home/config is messed up somehow)

Tried it already yesterday. Exactly the same behavior.

Crazy thing is: everything is running perfect after killing and restarting Plasmashell.

I guess that makes it system-wide rather than user-config.
But it doesnt rule out bad software installation or similar.

PS.
This line is probably better than your current ‘workaround’

kquitapp5 plasmashell && kstart5 plasmashell </dev/null &>/dev/null &

And you might have a look here (for inxi and such)

Hi cscs,

thanks for the reply and also thanks for the inix. Here we are:

System:
  Kernel: 5.8.6-1-MANJARO x86_64 bits: 64 compiler: N/A 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.8-x86_64 
  root=UUID=d0702172-991b-4fd9-a3b7-c5d80bbf9532 rw quiet udev.log_priority=3 
  Desktop: KDE Plasma 5.19.5 tk: Qt 5.15.0 wm: kwin_x11 dm: SDDM 
  Distro: Manjaro Linux 
Machine:
  Type: Laptop System: Dell product: Latitude E6440 v: 00 serial: <filter> 
  Chassis: type: 9 serial: <filter> 
  Mobo: Dell model: 0YX2X3 v: A00 serial: <filter> BIOS: Dell v: A18 
  date: 05/19/2017 
Battery:
  ID-1: BAT0 charge: 47.3 Wh condition: 47.3/66.6 Wh (71%) volts: 12.5/11.1 
  model: LGC-LGC3.0 DELL 4KFGD3C type: Li-ion serial: <filter> status: Full 
CPU:
  Topology: Dual Core model: Intel Core i7-4600M bits: 64 type: MT MCP 
  arch: Haswell family: 6 model-id: 3C (60) stepping: 3 microcode: 28 
  L2 cache: 4096 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 23154 
  Speed: 865 MHz min/max: 800/3600 MHz Core speeds (MHz): 1: 798 2: 798 3: 798 
  4: 798 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable 
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
  Type: meltdown mitigation: PTI 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, 
  IBRS_FW, STIBP: conditional, RSB filling 
  Type: srbds mitigation: Microcode 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel 4th Gen Core Processor Integrated Graphics vendor: Dell 
  driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:0416 
  Device-2: Microdia Integrated Webcam type: USB driver: uvcvideo 
  bus ID: 1-1.5:3 chip ID: 0c45:64d0 
  Display: x11 server: X.Org 1.20.8 compositor: kwin_x11 driver: intel 
  unloaded: modesetting alternate: fbdev,vesa display ID: :0 screens: 1 
  Screen-1: 0 s-res: 1920x1200 s-dpi: 96 s-size: 507x317mm (20.0x12.5") 
  s-diag: 598mm (23.5") 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 4600 (HSW GT2) 
  v: 4.5 Mesa 20.1.7 compat-v: 3.0 direct render: Yes 
Audio:
  Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio vendor: Dell 
  driver: snd_hda_intel v: kernel bus ID: 00:03.0 chip ID: 8086:0c0c 
  Device-2: Intel 8 Series/C220 Series High Definition Audio vendor: Dell 
  driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:8c20 
  Sound Server: ALSA v: k5.8.6-1-MANJARO 
Network:
  Device-1: Intel Ethernet I217-LM vendor: Dell driver: e1000e v: 3.2.6-k 
  port: f080 bus ID: 00:19.0 chip ID: 8086:153a 
  IF: eno1 state: down mac: <filter> 
  Device-2: Intel Centrino Advanced-N 6235 driver: iwlwifi v: kernel 
  port: f040 bus ID: 03:00.0 chip ID: 8086:088e 
  IF: wlp3s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 238.47 GiB used: 80.40 GiB (33.7%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/sda vendor: LITE-ON IT model: LMT-256M6M-41 mSATA 256GB SED 
  size: 238.47 GiB block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s 
  serial: <filter> rev: 10F scheme: MBR 
Partition:
  ID-1: / raw size: 238.47 GiB size: 233.72 GiB (98.01%) 
  used: 80.40 GiB (34.4%) fs: ext4 dev: /dev/sda1 
Swap:
  Alert: No Swap data was found. 
Sensors:
  System Temperatures: cpu: 50.0 C mobo: 45.0 C sodimm: 29.0 C 
  Fan Speeds (RPM): cpu: 0 
Info:
  Processes: 203 Uptime: 3m Memory: 7.68 GiB used: 1.16 GiB (15.1%) 
  Init: systemd v: 246 Compilers: gcc: 10.2.0 Packages: pacman: 1065 lib: 285 
  Shell: Bash v: 5.0.18 running in: konsole inxi: 3.1.05 

Funny thing is, I have another workaround, that works pretty good. And I think this could be helpful to find the root of the error.
Manjaro is running on my laptop, which is in a docking station below my desk (closed). Yesterday I worked a bit on the couch and - surprise - panels are here. So I checked that the panels are only missing when the laptop is closed and only the external monitor is on.
After log in, no panels - open the laptop and close it again: here are the panels.

But this is not really satisfying. But I hope this helps you to get an idea what I could do.
PS: I tried all different settings in the Monitor settings (don’t know how it is called in English exactly)

Did another clean install, via DVD.
Checked everything twice and it is still the same error. Looking like Manjaro and my laptop won’t be friends. I’ll try another OS now.

Thanks all for the help