Whenever you login into your computer, you\u2019re presented with a screen asking your credential to verify that it\u2019s you. After you enter the password, you\u2019re in your world. Each time you log in, you have to go through this process again and again. Doesn\u2019t it feel boring to look at the face of that same, plain screen? I bet you\u2019re pretty tired of the system\u2019s default login screen. Well, let\u2019s add a splash of color! Having an awesome background would really rejuvenate your desktop experience, don\u2019t you agree? Ubuntu is the most popular Linux distro for general users, no doubt. However, over the course of its lifetime, there\u2019s that same, BORING login screen appearing. It\u2019s time to change that.<\/p>\n
Ubuntu shifted from Unity to GNOME desktop environment and GDM as login agent. By default, Ubuntu allows you to modify your desktop wallpaper and lock screen background. However, there\u2019s no direct option available for changing the login screen background. We\u2019ll have to dig our way through various system tweaks.<\/p>\n
At first, make sure that you have your background image ready.<\/p>\n
<\/p>\n
Now, fire up a terminal and run the following commands \u2013<\/p>\n
sudo cp ~\/Desktop\/mybackground.png \/usr\/share\/backgrounds<\/p>\n
<\/p>\n
Or, you can also use the file manager to do the task.<\/p>\n
xhost +local: && sudo nautilus \/usr\/share\/backgrounds\/<\/p>\n
<\/p>\n
Now, you have to edit the CSS file that defines the login background.<\/p>\n
Xhost +local: && sudo gedit \/etc\/alternatives\/gdm3.css<\/p>\n
<\/p>\n
Now, find out the following section \u2013<\/p>\n
<\/p>\n
Change the \u201cbackground\u201d entry \u2013<\/p>\n
#lockDialogGroup {
\nbackground: url(file:\/\/\/usr\/share\/backgrounds\/mybackground.png);
\nbackground-repeat: no-repeat;
\nbackground-size: cover;
\nbackground-position: center; }<\/p>\n
Save the file.<\/p>\n
After everything is complete, restart your system.<\/p>\n
<\/p>\n
Voila! Enjoy the most amazing login screen backgrounds of your entire life!<\/p>\n