I everybody,

Simple message to notify that VO sometime crash my X.org server (during load at 11% or when jumping from 1 system to another). It's a little bit random but that appear many time... boring.

I think that a module problem with Ubuntu 9.04 64bits system.

Here some details :

$ lspci

00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 RAID bus controller: Intel Corporation Mobile 82801 SATA RAID Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
03:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
03:01.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
03:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN [Shiloh] Network Connection

$ apt-cache show xserver-xorg

Package: xserver-xorg
Priority: optional
Section: x11
Installed-Size: 648
Maintainer: Ubuntu Core Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Debian X Strike Force <debian-x@lists.debian.org>
Architecture: amd64
Source: xorg
Version: 1:7.4~5ubuntu18
Filename: pool/main/x/xorg/xserver-xorg_7.4~5ubuntu18_amd64.deb
Size: 194576
MD5sum: aee31ccb438230c76338d4650f93464d
SHA1: 4cc616ef1a866ef2c971591cc254bfe2dadebd96
SHA256: 4570d6bd0bbcd5d517714c20430c9f9eb567add8d517f128ff3b0e4acafec72a
Description-fr: Serveur X X.Org
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu

$ uname -a
Linux syncom 2.6.28-14-generic #47-Ubuntu SMP Sat Jul 25 01:19:55 UTC 2009 x86_64 GNU/Linux

The laptop is a Dell E6500 with 4GB of RAM and a Intel Core2 Duo CPU (P9600 @ 2.66GHz)

Not much information on what's causing the crash.

Depending on your memory, you may try lowering the amount set aside as shared in your xorg.conf file. Though with 4 GB, hard to imagine that's the problem.

Also, try and turn off all the extra eye-candy and see if you can get it stable at some minimum. After that, add in more eye-candy.

Have you made the changes to enable UXA? I was experiencing problems with the GMA 945 Intel chipset and they went away when I did this (though I have 32-bit). If you check some the forum search tool, I left links behind to the instructions. There was also a problem with something called mtrr that required a patch and script to be run at startup.