Tuesday, July 31, 2012

Scientific Linux: Configuring default wallpapers

I hate when the wallpapers change and change and change while the box is booting, I like to have the same wallpaper all the way thru the booting until it reaches my own desktop and the box is ready to get to work on it.
So this is what I did on my Scientific Linux lappie to get thing the way I want them.

Setup login wallpaper:
sudo cp /wherever/Blue-Circles.jpg /usr/share/backgrounds/Blue-Circles.jpg
sudo emacs /usr/share/gnome-background-properties/half-circles.xml
The file has to end up like this:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE wallpapers SYSTEM "gnome-wp-list.dtd">
<wallpapers>
  <wallpaper deleted="false">
    <name>Half Blue Circles</name>
    <filename>/usr/share/backgrounds/Blue-Circles.jpg</filename>
    <options>zoom</options>
  </wallpaper>
</wallpapers>
Select from Preferences and setup Blue Circles as your wallpaper.
And then setup Blue Circles as the login wallpaper:
sudo cp /usr/share/applications/gnome-appearance-properties.desktop /usr/share/gdm/autostart/LoginWindow
Logout and back in, force select the "Blue Circles" picture as the wallpaper and login as usual.
Then, disable the further force selection (that will happen on every login):
sudo unlink /usr/share/gdm/autostart/LoginWindow/gnome-appearance-properties.desktop

Setup GNOME screensaver's login wallpaper:
This will change the login screen you get when you are using the screensaver and it asks your password to disable the screensaver.
It might be possible that it has to use a different *_default.png picture, this was done on a Thinkpad T60p that has a 1600x1200 resolution screen.
cd /usr/share/backgrounds/
sudo mv 2048x1536_default.png 2048x1536_default.png.ORIG
sudo ln -s Blue-Circles.jpg 2048x1536_default.png

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