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Accepted
David
Asked: 2017-10-22 03:55:52 +0800 CST

Left align background login screen

  • 772

After having used ubuntu gnome for quite a long time (since its launch), I decided to try out the new ubuntu 17.10.

One thing hurted me: the background of the login screen (how can you make it so awful?). I therefore decided to change it by editing the file /etc/alternatives/gdm3.css as follows:

#lockDialogGroup {
  background: url(file:///usr/share/backgrounds/warty-final-ubuntu.png);
  background-repeat: repeat;
  background-size: contain; }

Since I have 2 monitors, I need to repeat it. The output is

Image repeated in a wrong way

I therefore tried by adding 

  background-position: left -50%;

or

  background-position: left;

but did not succeed. How can I set its position, s.t. it will work with one as well as with two monitors?

gnome

2 Answers

  1. Best Answer

    I had this same problem, I was able to position the background at the top left of the screen using:

    background-position: 0 0;
    • 2

  2. If you need pixel-perfect gdm3 login background for double monitor setup, try this:

    #lockDialogGroup {
  background: #2c001e url(file:///usr/share/backgrounds/bg.jpg);
  background-position: 0 0;
  background-size: 2048px 1152px; //your screen's resolution
  background-repeat: repeat;
}

    (mind you, it was tested on two identical screens)

    • 0