I know this has already been discussed in different post, (Is it possible to have a different background for each workspace?) but the solutions were for 11.04. I want to have a different wallpaper for each desktop. I have already installed compiz and the extra plugins to get the Wallpaper plugin by:
sudo apt-get install compizconfig-settings-manager compiz-fusion-plugins-extra
Then I select in the plugin 4 new wallpapers including a .jpg which prompts me to enable jpg plugin, which I do. Next in Advanced Settings (old Ubuntu Tweak tool) I make the setting Off for /Desktop/Have File Manager handle the desktop
The result is I have 4 desktops completely black. After playing around with multiple pictures, I managed to get my 4th desktop (lower right) to show a picture. The pictures were of different resolutions and then of the same resolution, so I am not sure why that particular one worked.
By the way if I will manage to make this work, will I still be able to use my conky?
Solutions I've tried after suggestions and still did not work:
new account created, made the settings => only 2 pics are rendered: top right and lower left.
Tried CTRL+ALT+F1, then back to CTRL+ALT+F7, still nothing
I confirm that .jpg and .png are enabled in compiz.