Install xscreensaver-data by entering the following commands in the terminal:
sudo apt update sudo apt install xscreensaver-data
Description:
Screen saver modules for screensaver frontends
XScreenSaver is a modular screen saver and locker for X11, containing more than 200 screen savers. . This package contains a small selection of graphical screen saver modules (listed below) from the xscreensaver collection. This package can be used by xscreensaver and also some other screensaver engines. . This is the selected set of non-GL screensavers shipped by default: abstractile, binaryring, cwaves, deco, distort, fiberlamp, fuzzyflakes, galaxy, hexadrop, m6502, metaballs, penrose, ripples, shadebobs, slidescreen, swirl, tessellimage, xlyap. . More display modes can be found in xscreensaver-data-extra, xscreensaver-gl and xscreensaver-gl-extra packages.
Homepage: http://www.jwz.org/xscreensaver/
Version: 5.36-1ubuntu1
Section: universe/x11