DisplayID support

[Marc Ferland]

Hi,

I'm currently running Linux on a computer-on-module board from
Kontron. I recently upgraded the kernel from 2.6.33.3 to 2.6.35.4 and
since that change, Xorg will not detect the LVDS parameters correctly.
The LVDS actually uses the DisplayID format
(http://en.wikipedia.org/wiki/DisplayID) to expose it's specification.

I've bisected this "regression" to commit:
61e57a8d72f2336faf39b5d940215cf085e01e6e in the kernel
(http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=61e57a8d72f2336faf39b5d940215cf085e01e6e).

I'm running x-server 1.7.1 with the intel 2.9.1 driver (full Xorg log
attached). Errors are also popping up on Xorg startup:

drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0
(==) intel(0): Depth 24, (--) framebuffer bpp 32
(==) intel(0): RGB weight 888
(==) intel(0): Default visual is TrueColor
(II) intel(0): Integrated Graphics Chipset: Intel(R) GM45
(--) intel(0): Chipset: "GM45"
(II) intel(0): Output VGA1 using monitor section Monitor0
(II) intel(0): Output LVDS1 has no monitor section
(II) intel(0): Output DP1 has no monitor section
(II) intel(0): Output TV1 has no monitor section
(EE) intel(0): Unknown EDID version 0
(II) intel(0): Output VGA1 disconnected
(II) intel(0): Output LVDS1 connected
(II) intel(0): Output DP1 disconnected
(II) intel(0): Output TV1 disconnected
(II) intel(0): Using fuzzy aspect match for initial modes
(II) intel(0): Output LVDS1 using initial mode 640x480
.....
(EE) intel(0): Unknown EDID version 0
(EE) intel(0): Unknown EDID version 0
(II) intel(0): Allocate new frame buffer 984x553 stride 1024
(EE) intel(0): Unknown EDID version 0

Anyone knows if this has been addressed in a newer Xorg version? Also,
is there support in the kernel for the DisplayID format?

Regards,

Marc