Since Ubuntu 11.10 Oneiric, LightDM replaces GDM as the default display manager. Then here comes the first GUI tool to manage Lightdm log-in screen appearance, and it’s called Simple LightDM Manager.
So far, Simple LightDM Manager only supports changing Log-in background and logo.
provides packages for Ubuntu 11.10 Oneiric user. Type following commands in terminal:
sudo apt-add-repository ppa:claudiocn/slm sudo apt-get update sudo apt-get install simple-lightdm-manager
Or directly download .deb package from