Comment 45 for bug 194760

lspci:
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
00:02.1 Display controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)

Using latest updates for 11.10 Oneiric Ocelot and xserver-xorg-video-intel, I get edidfail with `sudo ddcprobe` while connected via DVI.

What's curious in this case is that Intel has released an alternative driver for Windows systems which supposedly fixes the problem. I do not know if the problem is due to the same cause in Oneiric, as I don't have a Windows license to test with, but here is Intel's report on the issue:
http://www.intel.com/support/graphics/sb/CS-028366.htm

Here's my info according to the checklist:
1. AOC 416V (TK7SMUDBAWA1HN, Serial No. F1677JA000866). Picture of monitor label attached.

2. Xorg.0.log attached. In the end of it, I set 1920x1200 resolution manually with a command I copied straight off another 1920x1200 monitor:
xrandr --newmode "1920x1200" 193.16 1920 2048 2256 2592 1200 1201 1204 1242 -HSync +Vsync && xrandr --addmode DVI1 1920x1200 && xrandr -s 1920x1200

3. get-edid couldn't finish! This was the output:
get-edid: get-edid version 2.0.0

 Performing real mode VBE call
 Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
 Function supported
 Call successful

 VBE version 300
 VBE string at 0x11100 "Intel(r)Lakeport-G Graphics Chip Accelerated VGA BIOS"

VBE/DDC service about to be called
 Report DDC capabilities

 Performing real mode VBE call
 Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
 Function supported
 Call successful

 Monitor and video card combination does not support DDC1 transfers
 Monitor and video card combination does not support DDC2 transfers
 0 seconds per 128 byte EDID block transfer
 Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
 Read EDID

 Performing real mode VBE call
 Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
 Function supported
 Call failed

The EDID data should not be trusted as the VBE call failed
Error: output block unchanged

4. Seems to be:
Horizontal 74.038 kHz
Vertical 59.95 Hz