I just found a workaround. (Must be something about posting a problem. I've been looking for this for ages.) From PhilCash in this thread http://ubuntuforums.org/showthread.php?p=6680279 :
Find the dir used by one of the default screensavers and put your link there. For instance, "cosmos" is in /usr/share/pixmaps/backgrounds/cosmos/ [CODE]sudo ln -s /full-path-to-desired-pictures/eg/astron-general/ /usr/share/pixmaps/backgrounds/cosmos/astron-general [/CODE] -- [hardy] screensaver fails to start and screen fails to completely black out https://bugs.launchpad.net/bugs/229144 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
