unable to see the gdm login screen in maverick some thing broke

[Tapas Mishra]

On Tue, Oct 5, 2010 at 9:28 PM, Jordon Bedwell <jordon at envygeeks.com> wrote:
> On Tue, 2010-10-05 at 21:19 +0530, Tapas Mishra wrote:
>> Every thing was working fine until after noon.
>
> Try going through /var/log/gdm/{logs are here} and see what you find,
> don't go posting your logs, just post selective interesting parts that
> might help us diagnose a possible issue.
>
I see in /var/log/gdm/:0-slave.log following line

gdm-simple-slave[1254]: WARNING: Unable to load file
'/etc/gdm/custom.conf': No such file or directory

also I see in /var/log/gdm/:0.log

(==) No screen section available. Using defaults.
(**) |-->Screen "Default Screen Section" (0)
(**) |   |-->Monitor "<default monitor>"
(==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
(==) Automatically adding devices
(==) Automatically enabling devices
(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
	Entry deleted from font path.


Log of $HOME/.xsession-errors is
http://paste.ubuntu.com/506714/
I have tried adding gdm& to /etc/rc.local
and rebooted did not worked.

What should I be checking more I want to re create X configuration
file but I have forgotten the procedure for that can some one remind
of that?