[PATCH 0/5] Initial DisplayPort OUI probing

Adam Jackson ajax at redhat.com
Mon May 21 10:41:47 PDT 2012

On Mon, 2012-05-14 at 16:05 -0400, Adam Jackson wrote:
> DisplayPort has an escape hatch by which devices can identify each other.
> I'm not super thrilled that it does, since that's just a clever way of
> getting the spec to explicitly bless interoperability bugs.  But it may
> be useful information when debugging link training problems, and there's
> a cute trick you can do on iMacs that I think will require knowing this
> information, so we may as well fill it in.
> Tested on a Lenovo T500 against a DP->VGA adaptor (which turns out to be
> an ST Microelectronics chip, who knew) and an HP LP2480zx (which does
> not advertise OUI support, but also harmlessly returns 0s for the OUI
> registers if you read them anyway).

Bump.  Any takers?

- ajax
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