https://bugs.freedesktop.org/show_bug.cgi?id=29951
--- Comment #2 from Chris Rankin rankincj@googlemail.com 2010-09-15 07:50:00 PDT --- (In reply to comment #1)
The screensaver shows my wallpaper gallery rather than my desktop, but the images look all right here.
The choice of image looks random to me. Try running another OpenGL application, and then rerunning the screensaver. I tried reproducing this bug last night and at first I thought it was fixed. But then I played WoW for a bit and tried again...