[Bug 82894] Logging out of Gnome from XDMCP session does not return to login screen

[Joe Baker]

Public bug reported:

Binary package hint: gdm

We have Ubuntu Edgy 6.10 installed with the latest updates.   We use the
LTSP package provided by Ubuntu.   However instead of using LDM, I have
enabled GDM's XDMCP logins and I've rigged the thin clients to use
startx instead of ldm.

This all works great getting logged into the desktop session.  We use
LDAP authentication also.  I am having a problem with authentication
with the screensaver password lock only (another issue for another day).

When a user clicks the Red Log off button, then the Green "Log Out" button the screen goes to only the background image.  Instead it should return to the GDM XDMCP login screen.  This behavior can also be replicated from another machine using: 
  vncserver :1 -query apps.nelfc.com -geometry 1280x1024 -depth 16

The desktop sets up properly, but once the user selects Log off -> Log
Out  the background image of the login screen is all that is seen.

** Affects: gdm (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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Logging out of Gnome from XDMCP session does not return to login screen
https://launchpad.net/bugs/82894