Bug#471413: q965 frequently hard locks when starting X

["Bernard Gray" <bernard.gray@gmail.com>]

Package: xserver-xorg-video-intel
Version: 2:2.2.1-1
Severity: important

Kernel: 2.6.24-1-686

I am experiencing the issue reported on the xorg bugtracker here:
https://bugs.freedesktop.org/show_bug.cgi?id=14867

It only occurs on my machines with intel q965 graphics chipsets (I
have tested on 3 identical Dell Optiplex 745 desktops), and does not
affect Intel (82)Q35 graphics chipsets (tested on Dell Optiplex 755
models).

The symptom is: upon X starting, just before loading mouse cursor the
screen goes black with a single non-blinking cursor in the top left
corner. The machine does not respond to keyboard input, mouse input,
or pings and must be power cycled. This symptom does not occur every
time, but it occurs in the majority of cases (~80% of the time)

I have tried building the version of xserver-xorg-video-intel in the
xorg git tree according to the suggestion in the upstream bug report,
it did not help, and so far exhibits the symptom described above 100%
of the time.

startx output seems to be getting buffered before it writes to the log
file and consequently no new output appears in the Xorg.0.log after
reboot. I can capture the output if I startx from a remote shell
(output is listed below)

------------------------------------


$ lspci -nn | grep -i vga
00:02.0 VGA compatible controller [0300]: Intel Corporation
82Q963/Q965 Integrated Graphics Controller [8086:2992] (rev 02)

======================================================================

remote-shell:# startx
xauth:  creating new authority file /root/.Xauthority
xauth:  creating new authority file /root/.Xauthority

X: warning; process set to priority -1 instead of requested priority 0

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.
See http://wiki.x.org/wiki/GitPage for git access instructions.

X.Org X Server 1.4.0.90
Release Date: 5 September 2007
X Protocol Version 11, Revision 0
Build Operating System: Linux Debian (xorg-server 2:1.4.1~git20080131-1)
Current Operating System: Linux sidux 2.6.24-2.6.24.3.slh.1-sidux-686
#1 SMP PREEMPT Tue Feb 26 11:12:50 UTC 2008 i686
Build Date: 01 February 2008  03:49:13AM

       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: Tue Mar 18 09:31:04 2008
(==) Using config file: "/etc/X11/xorg.conf"
(WW) intel: No matching Device section for instance (BusID PCI:0:2:1) found


===================================================================


$ cat /etc/X11/xorg.conf
# /etc/X11/xorg.conf (Xorg X Window System server configuration file)
#
Section "ServerLayout"
       Identifier      "Xorg Configured"
       Screen          "Screen 0"
       InputDevice     "Keyboard 0"
       InputDevice     "USB Optical Mouse 0"
EndSection

Section "ServerFlags"
       Option          "AllowMouseOpenFail"    "true"
EndSection

Section "InputDevice"
       Identifier      "Keyboard 0"
       Driver          "kbd"
       Option          "CoreKeyboard"
       Option          "XkbRules"              "xorg"
       Option          "XkbModel"              "pc105"
       Option          "XkbLayout"             "us,ca"
       Option          "XkbOptions"            "altwin:super_win"
EndSection

Section "InputDevice"
       Identifier      "USB Optical Mouse 0"
       Driver          "mouse"
       Option          "Device"                "/dev/input/mice"
       Option          "Protocol"              "Auto"
       Option          "Emulate3Buttons"       "true"
       Option          "CorePointer"
EndSection

Section "Device"
       Identifier      "Device 0"
       Driver          "intel"
       BoardName       "Intel Corporation 82Q963/Q965 Integrated
Graphics Controller"
       BusID           "PCI:0:2:0"
EndSection

Section "Monitor"
       Identifier      "Monitor 0"
       ModelName       "Default Monitor"
EndSection

Section "Screen"
       Identifier      "Screen 0"
       Monitor         "Monitor 0"
       DefaultColorDepth 24
       SubSection "Display"
               Depth   8
       EndSubSection
       SubSection "Display"
               Depth   15
       EndSubSection
       SubSection "Display"
               Depth   16
       EndSubSection
       SubSection "Display"
               Depth   24
       EndSubSection
EndSection

Section "Extensions"
       Option  "Composite"     "on"
EndSection