This is from my logs on login: Apr 25 22:26:22 arch kded5[3612]: modemmanager-qt: Failed enumerating MM objects: "org.freedesktop.systemd1.NoSuchUnit" "Unit dbus-org.freedesktop.ModemManager1.service not found." Apr 25 22:26:22 arch plasmashell[3669]: trying to show an empty dialog Apr 25 22:26:22 arch plasmashell[3669]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height" Apr 25 22:26:22 arch plasmashell[3669]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height" Apr 25 22:26:22 arch plasmashell[3669]: Both point size and pixel size set. Using pixel size. Apr 25 22:26:22 arch plasmashell[3669]: file:///usr/share/plasma/plasmoids/org.kde.plasma.battery/contents/ui/CompactRepresentation.qml:53:17: Unable to assign [undefined] to int Apr 25 22:26:47 arch plasmashell[3669]: trying to show an empty dialog Apr 25 22:26:47 arch plasmashell[3669]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height" Apr 25 22:26:47 arch plasmashell[3669]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:146:19: QML Loader: Binding loop detected for property "height" Apr 25 22:26:47 arch plasmashell[3669]: trying to show an empty dialog Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: <Unknown File>: friendlyName2 is undefined. Adding an object with a undefined member does not create a role for it. Apr 25 22:26:47 arch plasmashell[3669]: org.kde.plasma.pulseaudio: context kaput Apr 25 22:26:52 arch plasmashell[3669]: trying to show an empty dialog Apr 25 22:26:52 arch plasmashell[3669]: trying to show an empty dialog Apr 25 22:26:53 arch plasmashell[3669]: file:///usr/share/plasma/plasmoids/org.kde.plasma.kicker/contents/ui/ItemListDialog.qml:51: TypeError: Cannot read property 'separatorCount' of null Apr 25 22:26:53 arch plasmashell[3669]: trying to show an empty dialog Apr 25 22:26:57 arch kwin_x11[3654]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 7380, resource id: 35651750, major code: 18 (ChangeProperty), minor code: 0 This started after an update to KDE on my arch machine, was fine before then. SOFTWARE/OS VERSIONS Linux: 5.6.6 KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.69.0 Qt Version: 5.14.2 ADDITIONAL INFORMATION
To add to this I also run 2 monitors and nvidia graphics but everything was working prior to the update and xfce and gaming works fine after as well. I attempted to reset all KDE settings by deleting all files in .config that started with kde or plasma but then the error is this instead but the symptoms are the same. Apr 26 12:02:24 arch kwin_x11[882]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 3381, resource id: 12582918, major code: 18 (ChangeProperty), minor code: 0 Apr 26 12:02:24 arch kwin_x11[882]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 3386, resource id: 12582919, major code: 18 (ChangeProperty), minor code: 0 Apr 26 12:02:25 arch kwin_x11[882]: Module 'org.kde.kwin.decoration' does not contain a module identifier directive - it cannot be protected from external registrations. Apr 26 12:02:25 arch kwin_x11[882]: file:///usr/share/kwin/aurorae/MenuButton.qml:22: TypeError: Cannot read property 'closeOnDoubleClickOnMenu' of null
That log say nothing particularly useful. Most likely cause is an application in ~/.config/autostart or /etc/xdg/autostart advertising that it has startup notifications and then not delivering. Please move them to verify. If possible get a full bootchart log as per: http://blog.davidedmundson.co.uk/blog/plasma-startup/
I have moved all of the autostart files, and the problem persists, except now it black screens. I will make a boot chart and post it. Similarly to the original reporter, I have 2 monitors and an Nvidia graphics card.
Probably dupe of bug 420549
Created attachment 127894 [details] bootchart added bootchart as requested. To someone totally new to this I cant seem to find anything off in the bootchart. I do not have telepathy installed so if that was the takeaway from the other bug I would have to say no.
nvm, Previous comment was correct. It was telepathy that caused the issues in my case. I was dumb however when looking before and only checked for packages called telepathy and not telepathy-kde. My bad. *** This bug has been marked as a duplicate of bug 402549 ***
*** This bug has been marked as a duplicate of bug 420549 ***