[Bug 64390] Upgrade to Edgy results in gdm error w/ no theme

[AgenT]

Public bug reported:

Binary package hint: gdm

Upon upgrading to Edgy and a reboot, gdm was using a plain theme, which
was not any Ubuntu theme. The "theme" made it look like it was
"themeless" (probably what you get when no proper theme is loaded).

Following error in a popup (before login window - which too was "themeless"):
"No servers were defined in the configuration file and XDMCP was disabled - This can only be a configuration error. GDM has started a single server for you. You should log in and fix the configuration. Note that automatic and timed logins are disabled now."

Steps to "fix" this:
System -> Administrations -> Login Window -> Security -> Configure X-Server -> Add/Modify and add a server (example: VT=1, Server=Standard).

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

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Upgrade to Edgy results in gdm error w/ no theme
https://launchpad.net/bugs/64390