How do I create a desktop wallpaper slideshow?
If you use it to manage your photos and like it easy I recommend to use Shotwell, which should be installed by default.
Open it:
Select the photos you want to be set as background slideshow:
Open File → Set as Desktop Slideshow or press Ctrl+B:
Adjust time settings:
Done.
Wallch
In software center there are two wallpaper changer - wallch for Gnome-Shell/Unity/Gnome-Classic and Wally for KUbuntu.
Lets concentrate on Wallch.
Sadly the version of Wallch in the software centre is outdated and has many issues especially with 14.04! There's a repository with the recent version.
To install, add the repository (you don't need to do this on 16.04):
sudo add-apt-repository ppa:wallch/wallch-daily
Then install Wallch:
sudo apt-get update && sudo apt-get install wallch
Then start from Dash:
Lets now launch the application preferences:
Let's untick the bubble notification - its annoying - at the same time you could disable sounds!
At the same time you can define the start-up options:
Save - and add a folder of pictures - in this example, use /usr/share/backgrounds for the default wallpapers that come with Ubuntu
Now we've got two choices:
Start up choice 1
(thanks @Naruto)
keep wallch in in the launcher
exit wallch and start changing wallpapers
Start up choice 2
start wallch on login without needing to have a launcher
From the dash:
Then create a new startup application with the command wallch --constant
N.B. - for some computers this will not work. The solution is to introduce a delay to the startup of the wallch daemon as per the following Q&A:
Wallch not auto-cycling backgrounds on log in
For 11.04 and previous versions
There's a program for creating wallpaper slideshows called CREBS. Check out this article about it: http://www.omgubuntu.co.uk/2010/05/crebs-the-ultimate-wallpaper-slideshow-application
A simpler app that has fewer features but is easier to use can be found here: http://gnome-look.org/content/show.php/Wallpaper+Slideshow?content=125178
