When I click the switch user in the Actions Buttons in my panel, I get this message:
GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.DisplayManager was not provided by any .service files
I get the same message if I lock the screen and then select New Login option (I'm using xscreensaver).
If I type dm-tool switch-to-greeter
in terminal I get into the login screen and can enter with a new user but that is not an elegant method. I want the actual buttons to work!
The other posts on this topic are either unresolved or do not work for me. Any advice?
EDIT: this seems to be a bug. I filled a new bug here and there is a similar bug reported here.