Comment 2 for bug 1339380

I understand that visual rupture is unnoticeable if greeter and session wallpapers match like, as you say, in Xubuntu.

On the other hand, "modular" configurations like the one I'm running in Arch Linux should be taken into account. i.e.: Different backgrounds set in Cinnamon configuration and lightdm-gtk-greeter.conf. Also, under multiuser layouts, having a common greeter wallpaper and one different wallpapers for each user is a common situation.

Provided that, I still think it'd be a great possibility. My thoughts were using a greeter fade-out alpha channel effect, like the one from KDE KSplash to the desktop once it has finished loading. I don't know if it's possible and I'm aware that it'd require hours of developping, though.

Thanks a lot for your attention, I didn't expect such a quick answer.