[LightDM] can't connect to display before login

[Guido Berhoerster]

* Alfonso Fiore <alfonso.fiore at gmail.com> [2011-10-18 19:45]:
> Hello,
> 
> my apologies I'm not an expert, so maybe I'm wrong in looking here for my
> solution, but I think it's worth a try.
> 
> In my previous distribution release (Ubuntu 10.10) with GDM I managed to
> have x11vnc run at startup adding something to /etc/gdm/Init/Default.
> 
> Now, with LightDM, I have two questions:
> 
> - where can I put a hook to automatically start x11vnc to remotely connect
> at startup?
> 
> and most importantly:
> 
> - why does x11vnc not run until I logged in with my user? with GDM I was
> able to connect using a vnc client and get the login prompt. Now if I try to
> start x11vnc it won't work until a user logged into the system. How can I
> connect with a vnc client to the login prompt with LightDM?

LightDM has built-in VNC support, you can enable it with
[VNCServer]
enabled=true
in lightdm.conf.
-- 
Guido Berhoerster