3 Awesome Ubuntu Apps For Wallpaper Slideshow:
Wallch lets you create a slideshow of wallpapers of your choice from a set of pictures. These pictures can be stored in multiple directories. You can set the time interval for background change.
Option available to configure it to start at boot time. It is advisable to choose this option otherwise you will have to manually start the application each time you boot in Ubuntu.
Use the following commands in terminal (ctrl+alt+T) to install Wallch in Ubuntu:
sudo apt-get install wallch
Use the following command to remove Wallch:
sudo apt-get remove wallch
Variety is an applet indicator that lets you create wallpaper slideshow from pictures stored at various location as well as from several different online sources such as Picasa and Flickr. Apart from setting the time interval for the slideshow, you can also apply various filters for blur or oil paint effect on the wallpapers.
You can see the different configuration options here. As advised before, select the option to start Variety at start up to enjoy the wallpaper slideshow painlessly.
Use the following commands to install Variety in Ubuntu:
sudo pat-get install variety
Use the following command to remove Variety:
sudo apt-get remove variety
Slidewall is a complete wallpaper application that provides all the functionalities of Wallch and Variety. In addition, it also provides the option of using Android-style live wallpapers in Ubuntu. It comes with bunch of live wallpaper with option of adding more live wallpapers from different sources.
So if you want some good live desktop background (like the one in picture below) and are not feeling comfortable with Conky, Slidewall is the perfect suite for your need.
Use the following command in terminal to install Slidewall:
sudo add-apt-repository ppa:fioan89/slidewall
sudo apt-get update
sudo apt-get install slidewall
Use the following command to uninstall slidewall:
sudo apt-get remove slidewall
Hope it helps you in making your Ubuntu desktop look better.