this needs reassigment then, it's probably an xorg issue.
** Changed in: gnome-screensaver (Ubuntu)
Importance: Undecided = Low
** Package changed: gnome-screensaver (Ubuntu) = ubuntu
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gnome-screensaver causes system hang
https://bugs.launchpad.net/bugs/379659
You received this bug
My most humble apologies. The problem is NOT specific to gnome-
screensaver. XScreensaver exhibits the same problem -- it just took a
little longer.
Blank Screen still works. Bouncing Cow appears to work on a short
trial -- I'll leave it overnight to see if I can get it to fail as well.
At the