By default Gnome screen saver is a black screen and a very annoying one trust me. Most of it’s functions will not work like goes to sleep mode every 1 or 2 minutes.

Yes, i did modify it to my best but at the end i give up on it and installed xscreensaver. If you go to YaST and install it from there, it will ask you to remove gnome-screensaver, just accept to uninstall and install xscreensaver OR fire up a terminal and become root by su -, type:

zypper in xscreensaver

After installation open a new tab in terminal by Shift+Ctrl+T. Type:

xscreensaver-demo

Edit it to your taste or even disable it completely as i did.

Now a little bit tweak to start it on each boot. Type this as normal user in terminal OR Alt+F2:

gnome-session-properties

Click add button, give it any name you want, any comment you would like and paste this command in the Command text box:

xscreensaver -nosplash

Click add button and done.

Xscreensaver <>