I would like to set the wallpaper in the login screen (Unity Greeter), how do I do that?
Change Login Screen Wallpaper – How to Guide
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I would like to set the wallpaper in the login screen (Unity Greeter), how do I do that?
Best Answer
Ubuntu 12.04 to 13.04
Ubuntu 12.04 Unity greeter has introduced selected user dynamic background, that means that when selecting a user from the available users list the background will change to reflect the selected user's desktop background.
By default lightdm will set
/usr/share/backgrounds/warty-final-ubuntu.png
as the default background and the option for the dynamic background switching on.Setting the dynamic switching off
Open a terminal and get root
(Type sudo password)
Allow the user lightdm to create a connection to the X server
Switch user to lightdm
Turn off the dynamic switching of the background
If you want to reset that setting to default after changing it, follow all the steps until the command above and instead use
When you are done setting off or reseting to default the dynamic background feature you can close the terminal or type 2x
exit
, first to revert back to root and the second to clear the root privileges and revert back to your normal user.Changing the default fixed background
(you will only see this one if the user did not set a desktop background picture or if the dynamic setting is set to false)
Open a terminal and get root
(Type sudo password)
Allow the user lightdm to create a connection to the X server
Switch user to lightdm
Change the default background with a picture of your choice
(Note: the wallpaper file cannot be located inside a encrypted user's home, those are only mounted after the user has logged in with his account.)
If you want to revert that to the default background follow all the steps until the command above but instead type
When you are done changing the default background feature or reverting back to the default one you can close the terminal or type 2x
exit
, first to revert back to root and the second to clear the root privileges and revert back to your normal user.