Comment 11 for bug 926726

I had the file defined in /etc/lightdm/unity-greeter.conf as background=/boot/grub/2011-0716-lgf-1280x1024.jpg
This used to work fine in 11.10. It is ignored in 12.04 and I get a standard-looking purple background.

One wonders how such a basic thing like this could get wrecked, and get right through into production.
Surely it must be a simple fix for whoever screwed this up to reverse it back.