Comment 21 for bug 573101

David,
I have to disagree with re-entangling two bugs, which seem to be copycats (i.e. displaying similar behaviour).

The blackscreen bug #546578 (duplicates #529882, #555298, #555870, #557779, #570687) appears after a few user switches, which can happen with only ONE user on the system. For some people the resolution has been to apply xgamma… The bug has now been related to a fade-out problem in the gnome-screensaver.

The blackscreen bug #573101 (duplicates #560911, #561538, #573101, #574909, #577219, #578979, #585685) appears only with MULTIPLE users on the system. The blackscreen appears after one user logs out, even from a failsafe xterm session. So a change to gnome-screenssaver CANNOT be a workaround for bug #573101 (the failsafe session does not run gnome-screensaver) and is therefore not a duplicate of bug #54678. This bug is related to the NVidia driver, which stops the active TTY from displaying the GDM – LoginWindow session (I have confirmed this with SSH). The x-update solution by Connie is the definite resolution for this bug.

I would suggest to differentiate between bug #54678 and bug #573101 by marking them as copycats (not an official launchpad option though, but references can be placed in the bug descriptions). Please confine yourself of the difference by reading the bug reports and if so change the duplicates as suggested above (I will not take the liberty myself at this point).

Regards,
 Marcel