Public bug report changed: https://launchpad.net/malone/bugs/33753 Comment: all 2d screensavers are in the xscreensaver-data and xscreensaver-data-extra (universe) packages, the 3d screensavers are in xscreensaver-gl and xscreensaver-gl-extra (universe) as an easy workaround you can uninstall the *-gl-* packages