Yes, that patch fixes the double fade bug. The --lock parameter does not lock the screen however, as in the comment by Oliver.
I applied the patch on the 2.14.1-0ubuntu2 version of gnome-screensaver. -- The screensaver fades twice https://launchpad.net/bugs/35051 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
