My Unity Greeter/LightDM is working fine in Precise with one exception.
When the greeter first displays the default system wallpaper /usr/share/backgrounds/warty-final-ubuntu.png is visible for 1 second, before dynamic LightDM kicks in. Its more of a nuisense than anything, but what options do I have to configure this to make it run seamlessly?
I have looked at other related AU Q&A and UF with no success and I have reviewed the configuration at
gksu gedit /etc/lightdm/unity-greeter.conf