Public bug reported:

Binary package hint: xserver-xorg-video-intel

Lenovo ThinkCentre M55 (8811-92G) with integrated Intel 965Q graphics
chipset. Sony 1600x1200 flat panel connected to TMDS-1 with single-link
DVI-D cable.

00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated 
Graphics Controller (rev 02)
        Subsystem: Lenovo Device 1011
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at d0000000 (32-bit, non-prefetchable) [size=1M]
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 3400 [size=8]
        Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 
Enable-
        Capabilities: [d0] Power Management version 2

This worked correctly with Hardy (see attached configuration file)

Upgraded from latest Hardy to Intrepid on 2008-10-09, using xserver-
xorg-video-intel 2:2.4.1-1ubuntu6.

When run with old xorg.conf (from Hardy), X loads the correct driver, but 
terminates with "no screens found".
X -configure produces a minimal xorg.conf that works - but only at 1152x864:

% xrandr
Screen 0: minimum 320 x 200, current 1152 x 864, maximum 1360 x 1360
VGA disconnected (normal left inverted right x axis y axis)
TMDS-1 connected 1152x864+0+0 (normal left inverted right x axis y axis) 0mm x 
0mm
   1360x768       59.8  
   1152x864       60.0* 
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  

Using the vesa driver, I get full resolution (1600x1200) but obviously
no acceleration.

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

-- 
[intrepid] i810 video driver regression
https://bugs.launchpad.net/bugs/282609
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