gdm[4155]: DEBUG: gdm_server_spawn: '/usr/bin/X :0 -br -audit 0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7'

This is a pre-release version of the X server from The X.Org Foundation.
It is not supported in any way.
Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Select the "xorg" product for bugs you find in this release.
Before reporting bugs in pre-release versions please check the
latest version in the X.Org Foundation git repository.
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X.Org X Server 1.4.99.905 (1.5.0 RC 5)
Release Date: 5 September 2007
X Protocol Version 11, Revision 0
Build Operating System: Linux Ubuntu (xorg-server 2:1.4.99.905-0ubuntu2)
Current Operating System: Linux Mugglewille 2.6.26-3-generic #1 SMP Wed Jul 2 21:56:15 UTC 2008 i686
Build Date: 07 July 2008  10:53:03AM
 
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Jul 14 08:55:35 2008
(==) Using config file: "/etc/X11/xorg.conf"
(EE) Failed to load module "dri2" (module does not exist, 0)

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x79) [0x80c2139]
1: [0xb7f21400]
2: /usr/bin/X(xf86SetScrnInfoModes+0x1b3) [0x80e9233]
3: /usr/bin/X [0x80f1508]
4: /usr/bin/X(RRGetInfo+0x99) [0x816a1e9]
5: /usr/bin/X(ProcRRGetScreenResources+0x8c) [0x816e4fc]
6: /usr/bin/X [0x81674d5]
7: /usr/bin/X(Dispatch+0x34f) [0x808be2f]
8: /usr/bin/X(main+0x47d) [0x80716bd]
9: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7b21685]
10: /usr/bin/X(FontFileCompleteXLFD+0x239) [0x8070aa1]

Fatal server error:
Caught signal 11.  Server aborting