how to read EDID/xrandr

[Matthias Hopf]

On Oct 12, 09 09:49:14 -0400, Alex Deucher wrote:
> On Mon, Oct 12, 2009 at 9:05 AM, Éric Piel <E.A.B.Piel at tudelft.nl> wrote:
> > Op 11-10-09 03:35, Ondrej Balaz schreef:
> >> Hi,
> >> is it possible to get edid info (especialy vendor and product id) for
> >> each of xrandr screens through X11 api?
> >>
> >> I'm creating utility to remember various devices connected to VGA output
> >> of my laptop (their mode/resolution, position etc.). AFAIK there is no
> >> better identificator than vendor+product_id pair. I can see both
> >> informations for various devices in my Xorg.0.log but I don't know how
> >> to "reaccess" them (if it's possible).
> > Sounds like a neat utility program. Would you mind posting an
> > announcement when it's working?
> >
> > Here, with the intel driver, I can see the edid of each screen in the
> > EDID_DATA property by doing:
> > xrandr --verbose
> 
> All randr 1.2 drivers expose the edid this way.

Actually, this is exposed by the Xserver itself.
Please note that with RandR 1.3 this property was renamed to just EDID
in the big property unification change.

Matthias

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Matthias Hopf <mhopf at suse.de>      __        __   __
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