Bug#626591: gnome-desktop-environment: black screen on gnome logout

[awork]

Package: gnome-desktop-environment
Version: 2.30.2
Severity: important
Tags: upstream


When I logout from gnome the system don't return to the login screen. 
I can confirm logout but after that I have a black screen. The consoles are still working. 
There is no error message in the X server log (no EE entry). 

If I do the "switch user" and then the "logout" it works - I get the login screen.

Probably the logout is executed, but the login screen does not appear.


-- System Information:
Debian Release: 6.0.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'stable')
Architecture: i386 (i686), Celeron, 1 GB RAM

Kernel: Linux 2.6.32-5-686 (SMP w/1 CPU core)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash