This is a bug in your video drivers and not xscreensaver, I'm afraid: https://www.jwz.org/xscreensaver/faq.html#server-crash
- Bug#858912: xscreensaver-gl-extra: "surfaces&qu... DirectuX
- Bug#858912: xscreensaver-gl-extra: "surfac... Jamie Zawinski
- Bug#858912: xscreensaver-gl-extra: "su... cacquara...@gmail.com
- Bug#858912: xscreensaver-gl-extra: &quo... cacquara...@gmail.com