[Bug 97971] Reading EDID on valleyview(device id: 0x0f31) fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97971

--- Comment #9 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to Ville Syrjala from comment #8)
> (In reply to Jani Nikula from comment #5)
> > 杨波, can you get /sys/kernel/debug/dri/0/i915_vbt or
> > /sys/kernel/debug/dri/0/i915_opregion from the original reporter?
> > 
> > Ville, any idea if we should be looking at some other ddc pin in the VBT, or
> > is the IS_VALLEYVIEW() thing all right? Are there any machines that would
> > have both VGA and DVI connectors, or does having DVI always mean that the
> > VGA is routed to DVI-I?
> 
> I didn't realize we even had machines with DVI-I. I've only ever seen
> separate DVI-D + VGA myself.
> 
> I would be rather surprised if there's a VLV machine with DVI-I. But who
> knows, I've been known to be wrong occasionally. So the key question here
> is; Does the machine have DVI-I, or just HDMI/DVI-D using non-standard DDC
> pins?

And naturally "... CRT with non-standard DDC pins?" would have been the right
question.

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