Ubuntu always uses gnome-screensaver that is the black screen which comes up when your system goes idle. This black screen is supported by the Gnome developers because they think that during idle time black screen provides minimal power usage.
In this article, you’ll get to know how to add screen savers in Ubuntu 14.04 as we are replacing gnome-screensaver by XScreensaver.
Following are the steps to add screensavers:
Step 1: First open your terminal by using “Ctrl + ALT + T” and then type: “sudo apt-get remove gnome-screensaver”.
Step 2: Now you’ll be prompted for your Ubuntu password. Just type your password and press enter.
Step 3: After some time you’ll ask to press “Y/N”, hit ‘y’ in order to continue.
Step 4: When gnome screensaver gets uninstalled then type: “sudo apt – get install xscreensaver xscreensaver – data – extra – xscreensaver – gl – extra”, press enter.
Step 5: Again, you’ll be prompted to type “Y/N”, press ‘y’ in order to continue.
Step 6: After installation gets completed, then open your Unity dash and type“screensaver”. You’ll see a screensaver icon, click on that to open.
Step 7: Now, you may see your screen saver window, here you can select any screensaver as you want. You can also set lock screen time by clicking on the dialog box beside it.
Step 8: You can further configure your screensaver by clicking on “Settings” button as shown in the image below.
Step 9: Under ‘settings’ you can configure various options like Frame Rate, Duration, etc.