xorg erroring on startup on ubuntu 9.04

[David Curtis]

On Tue, 14 Jul 2009 07:44:06 -0700 (PDT)
Tom Masterson <kd7cyu at yahoo.com> wrote:

> Below is the pertinent part of my syslog.  Sorry about the amount of stuff 
> but I want to be sure to get everything happening on startup.  I am using 
> a dell laptop and just upgraded to ubuntu 9.04 a couple of days ago and 
> have been trying to diagnose this problem since.

<snip>

> Jul 14 06:09:27 tom-laptop kernel: [   16.137339] agpgart-intel 0000:00:00.0: Intel 945GM Chipset

<snip>

> Jul 14 06:09:43 tom-laptop kernel: [  369.026068] Xorg[8205]: segfault at 21 ip 080d8832 sp bf92c170 error 4 in Xorg[8048000+19d000]
> Jul 14 06:09:43 tom-laptop kernel: [  369.044810] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
> Jul 14 06:09:46 tom-laptop acpid: client 8205[0:0] has disconnected 
> Jul 14 06:09:46 tom-laptop acpid: client connected from 8571[0:0] 
> Jul 14 06:09:49 tom-laptop kernel: [  375.684306] Xorg[8571]: segfault at 21 ip 080d8832 sp bfd31150 error 4 in Xorg[8048000+19d000]
> Jul 14 06:09:49 tom-laptop kernel: [  375.703398] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
> Jul 14 06:09:53 tom-laptop acpid: client 8571[0:0] has disconnected 
> Jul 14 06:09:53 tom-laptop acpid: client connected from 8583[0:0] 
> Jul 14 06:09:56 tom-laptop kernel: [  382.262492] Xorg[8583]: segfault at 21 ip 080d8832 sp bf899cc0 error 4 in Xorg[8048000+19d000]
> Jul 14 06:09:56 tom-laptop gdm[8193]: CRITICAL: gdm_config_value_get_bool: assertion `value->type == GDM_CONFIG_VALUE_BOOL' failed 
> Jul 14 06:09:56 tom-laptop kernel: [  382.276229] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0

You might want to read:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/350306
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/341363

And the release notes seem quite helpful:

http://www.ubuntu.com/getubuntu/releasenotes/904#Performance%20regressions%20on%20Intel%20graphics%20cards

Also google comes back with quite a few results:

http://www.google.ca/search?hl=en&q=[drm%3Ai915_get_vblank_counter]+*ERROR*+trying+to+get+vblank+count+for+disabled+pipe+0&btnG=Google+Search&meta=&aq=f&oq=


-- 
David Curtis <dcurtis at uniserve.com>