buffal0b1ll's post-posterous: March 2013

from: VNC from boot on Ubuntu 12.04 without logging in, using LightDM (or GDM) and x11vnc (includes LUbuntu with lxdm and Linux Mint LMDE with mdm) - Seb Maynard :: seb.so:

Step 1 – we want the VNC server to have a password, just in case – the VNC port shouldn’t really be exposed to the outside world – it’s easy to wrap it in an SSH connection to encrypt everything for you (see here for a good explanation of how to set that up).

sudo x11vnc -storepasswd /etc/x11vnc.pass

This will prompt you for a password to (lightly) secure your VNC server.

Step 2a (for LightDM – XUbuntu, and all Ubuntu variants 12.04 onwards) – create the upstart job. Put this in /etc/init/x11vnc.conf :

start on login-session-start
script
/usr/bin/x11vnc -xkb -auth /var/run/lightdm/root/:0 -noxrecord -noxfixes -noxdamage -rfbauth /etc/x11vnc.pass -forever -bg -rfbport 5900 -o /var/log/x11vnc.log
end script