EDID failing with Intel driver

[Matthew Garrett]

On Mon, May 19, 2008 at 10:23:10AM +0100, Ross Burton wrote:
> On Mon, 2008-05-19 at 10:12 +0100, Ross Burton wrote:
> > With Xserver 1.4.1 and -intel 2.3.1 (current Debian unstable) my
> > laptop's (ThinkPad X60) Intel 945 doesn't read the EDID data from my
> > external TFT monitor (a Dell 2007FPW).  My laptop reads the EDID in
> > Windows fine, and a MacBook running OS X also reads the EDID correctly.
> 
> I've just discovered that the kernel ACPI modules will read EDID too,
> and /proc/acpi/video/VID1/CRT0/EDID contains "<not supported>". :(

It's common to have no EDID support for CRTs through the ACPI methods. 
Thanks, ACPI spec.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org