> org.freedesktop.Notifications. However on our development release those > messages get displayed as windows instead of the usual bubbles. It seems > that the notification handling is not ready when the autostarts are > running. > > There is a fix for this in Plasma 5.10 onwards. Or you can backport the "plasma-workspace/startkde/waitforname" folder
Make sure any Dbus calls are sent asyncronously, otherwise you'll block your startup.