How do I set my wallpaper to auto-change periodically? [duplicate]

How do I create a desktop wallpaper slideshow with my own set of images?

• With the images coming from a pictures folder, or pre-selected
• With the images displayed in order, or randomly
• With the images changing every few minutes, or after random periods of time

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Sadly the version of Wallch in the software centre is outdated and has many issues especially with 14.04!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