Comment 3 for bug 1978113

> Crucially, it doesn't provide a means to remotely
> access the desktop unless someone is already logged in, which implies
> that the machine being controlled already has a keyboard and screen
> attached to it.
That assumption is wrong. I'm using the Raspberry Pi without a keyboard or a mouse attached to the Raspberry Pi and without manually login. Remember the autologin feature, it's even offered in the Ubuntu install process so I think it's a "basic" feature.

Anyways, even if you don't use the autologin feature you can remotely connect to the login screen (GDM greeter) and login from it remotely.

In my case the Raspberry Pi is attached to a TV and hidden behind it. Main use is as a media center and a 24h P2P sharing box. When I want to do something I just connect to it with and android tablet (RealVNC Client). Don't need a keyboard or mouse at all.