I installed Ubuntu mini 12.10 and then I did apt-get install lxde-core lightdm-gtk-greeter
.
I successfully changed the LightDM screen resolution editing the /etc/lightdm/lightdm.conf
and adding display-setup-script=xrandr -s 1280x720
.
How to add an image for the power and settings icons in the lightdm-gtk-greeter screen? Right now, it looks like this: