How to change the lock screen background

Alejandro (a.k.a KZKG^Gaara)

1 minute

 After a while without using the computer, GNOME crashes asking to enter a password. This can be a good security measure. However, there is no simple way to configure the appearance of this lock screen ... especially, how to change the background image used.


Before we start, don't forget that this will only work on GNOME 2 (so it will only work on Ubuntu Natty, Maverick and other GNOME 2 based Linux distros) and it will change the background used in the GDM (GNOME DisplayManager).

Steps to follow

1.- To change the background used on the lock screen, run the following in a terminal:

sudo gconftool-2 --direct --config-source xml: readwrite: /etc/gconf/gconf.xml.defaults --set / desktop / gnome / background / picture_filename --type string /path/background.jpg

Where "/path/background.jpg" is the exact path of the image you want to use as the background.

2.- I went out and logged in again. Run the following commands in a terminal:

killall gconfd-2
killall gnome screensaver

It is also possible to set the lock screen background to use the same image that you are using as your desktop background:

sudo gconftool-2 --direct --config-source xml: readwrite: /etc/gconf/gconf.xml.defaults --set / desktop / gnome / background / picture_filename --type string `gconftool-2 --get / desktop / gnome / background / picture_filename`

Revert the changes

In case you want to undo the changes, enter the following command:

sudo gconftool-2 --direct --config-source xml: readwrite: /etc/gconf/gconf.xml.defaults --unset / desktop / gnome / background / picture_filename

Source: WebUpd8


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  1.   cat said
    ago 11 years

    Greetings.
    I know the post is old but since I like to customize my GNU / Linux ubuntu installation a lot, I go looking for help because this option stopped working for me. I do not understand what happened or what I have done, but I implemented these commands and I could notice the change of image for two weeks, then the image simply went back to the boring black of always.

    I thought the image was erased but it is still there, I re-run the commands and it runs them correctly but my image is nowhere to be found. However, I noticed something peculiar at one point when the system began to slow down due to the programs I was opening, it switched to the lock screen and there I saw my image for a few seconds until the window to enter the password appeared, there it disappeared again .

    I really don't know what happens, so I would appreciate if someone is able to help me.
    Thank you very much for reading this comment, good day or night and success.

    Reply to Gaturro
  2.   Ronaldo Child said
    ago 2 years

    I do not change the wallpaper for the desired image and I only leave a blue background which is not reversed with the revert changes command

    Reply to Ronaldo Niño