Desktop wallpaper does not appear and cannot be changed in Ubuntu 13.04

[N.C. Weber]

After upgrading my Acer Aspire One D255E-2659 netbook from Ubuntu 12.10 to Ubuntu 13.04, I have noticed that the wallpaper assign to my desktop no longer appears. Instead, the wallpaper, grid, and logo from the LightDM background carries over to my main desktop. It seems like some kind of desktop refresh issue as using the Appearance module in System Settings does not change the desktop wallpaper. Appearance accepts the change in the preview, but when looking at the actual deaktop, nothing has changed.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1174383/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Adolfo Jayme Barrientos (fitojb)]

LP: #1173161 amd LP: #1170008 seem related.