ubuntu-E-PC:~$ cat /var/log/gdm/\:0.log.3

X Window System Version 7.2.0
Release Date: 22 January 2007
X Protocol Version 11, Revision 0, Release 7.2
Build Operating System: Linux Ubuntu
Current Operating System: Linux ubuntu-E-PC 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686
Build Date: 04 April 2007
        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: Sun Apr 15 22:19:24 2007
(==) Using config file: "/etc/X11/xorg.conf"
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
Could not init font path element /usr/X11R6/lib/X11/fonts/misc, removing from list!
Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1, removing from list!
Error in I830WaitLpRing(), now is 54812, start is 52811
pgetbl_ctl: 0x2ffe0001 pgetbl_err: 0x49
ipeir: 0 iphdr: 50300003
LP ring tail: 178 head: 144 len: 1f001 start 0
eir: 0 esr: 10 emr: ff7b
instdone: ffc1 instpm: 0
memmode: 0 instps: 24
hwstam: fffe ier: 82 imr: 53c iir: 0
space: 131012 wanted 131064

Fatal server error:
lockup

Error in I830WaitLpRing(), now is 56828, start is 54827
pgetbl_ctl: 0x2ffe0001 pgetbl_err: 0x49
ipeir: 0 iphdr: 50300003
LP ring tail: 180 head: 144 len: 1f001 start 0
eir: 0 esr: 10 emr: ff7b
instdone: ffc1 instpm: 0
memmode: 0 instps: 24
hwstam: fffe ier: 82 imr: 53c iir: 0
space: 131004 wanted 131064

FatalError re-entered, aborting
lockup