Change GNOME 3 Lock Screen Background

Once again the GNOME developers have managed to complicate things beyond belief. Why the GNOME UI Nazis decided there should be no simple way to change the background for both the login screen, the desktop backgound and the screen lock background is beyond comprehension! In a previous post I explained how to change the GDM (GNOME Desktop Manager) background image. In this post I explain how to change the Lock Screen background image. Taking Fedora 17 (Beefy Miracle) as an example, as root edit /usr/share/backgrounds/beefy-miracle/default/beefy-miracle.xml. Here are the contents of this file: <background> <starttime> <year>2012</year> <month>01</month> <day>29</day> <hour>00</hour> <minute>00</minute> <second>00</second>