Comment # 8 on bug 1231288 from Aleksey Kontsevich

X11:Utilities has "xtrascreenhacks" package - Collection of openGL
Screensavers. It has explicit instructions in description:

For these screensavers to work, you will need to add entries to your
$HOME/.xscreensaver file by hand. Add the following lines: 
- daisy -root \n\
- twinkle -root \n\
- GL: flyer -root \n\
- GL: "Berlin-Uhr" berlinuhr -root \n\
- GL: soma -root \n\
- GL: skylark -root \n\
- GL: craters -root \n\
- GL: psychedelic -root \n\
- GL: "HH-Tree" hhtree -root \n\


May be need to add same instructions into rss-glx package?