XScreenSaver is the standard screen saver collection shipped on most Linux and Unix systems running the X11 Window System. I released the first version in 1992. I ported it to MacOS X in 2006, and to iOS in 2012.On X11 systems, XScreenSaver is two things: it is both a large collection of screen savers; and it is also the framework for blanking and locking the screen.On MacOS systems, these screen savers work with the usual MacOS screen saving framework (X11 is not required).On iOS devices, it is an application that lets you run each of the demo modes manually.
XScreenSaver is a collection of about many free screensavers for Linux.
sudo apt-get remove gnome-screensaver
sudo apt-get install xscreensaver xscreensaver-gl-extra xscreensaver-data-extra
create file for autostart enter following command in terminal:
sudo gedit /etc/xdg/autostart/screensaver.desktop
after that copy and paste the following code in file:
[Desktop Entry]
Name=Screensaver
Type=Application
Exec=xscreensaver -nosplash
Save and Exit the file.
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