The recipies for changing one's login screen in 14.04 [EDIT or in 15.04, 15.10] don't work in 16.04. The "custom" background shows for a split second and then fades to the Ubuntu one. So, how do I change the login screen background in 16.04?
[Edit: this post is not a duplicate because all other related questions specifically refer to previous versions of Ubuntu, and the solutions to those do not apply here (as they do not work on 16.04).]
Best Answer
You said:
The greeter by default load the selected user background if it is available. A fade transition used to change between backgrounds of users including greeter default (for guest user). I think that the question should: How to stop lightdm greeter from loading the user background?
Be aware of two distinct greeters, default is
unity-greeter
. I noticed that some answer here in AU, don't mention this and mix up between them.Using
lightdm-gtk-greeter
GUI tool
Install the settings tool
Run it
In Appearance tab: Select the image
Save & Close
CLI tools
Open lightdm greeter settings file
Change it this way
Ctrl+o to save it then Ctrl+x to exit.
Using
unity-greeter
(default)Same answer by Serg, I have tested it in a fresh VBox Ubuntu 16.04.
Change the background of the login screen
Some debug hints:
Purge
lightdm-gtk-greeter
settingsOr you may want just disabling it temporary
To enable it back
Restarting the lightdm is needed
Reinstall
unity-greeter
to remove any change in/usr/share/glib-2.0/schemas/com.canonical.unity-greeter.gschema.xml
Check if there any other dconf override file that take priority