X.Org X Server 1.11.3
Release Date: 2011-12-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.42-23-generic x86_64 Ubuntu
Current Operating System: Linux MacBook 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=ad3ba36e-3ad7-4ad8-a089-3dc87bd50037 ro quiet splash vt.handoff=7
Build Date: 20 April 2012  05:12:02AM
xorg-server 2:1.11.4-0ubuntu10.1 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.24.4
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
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.1.log", Time: Sun May 13 02:13:01 2012
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE) intel(0): [drm] failed to set drm interface version.
(EE) intel(0): Failed to become DRM master.
DRM_IOCTL_I915_GEM_APERTURE failed: Bad file descriptor
Assuming 131072kB available aperture size.
May lead to reduced performance or incorrect rendering.
get chip id failed: -1 [9]
param: 4, val: 0
X: ../../intel/intel_bufmgr_gem.c:2783: drm_intel_bufmgr_gem_init: Assertion `0' failed.