[PATCH] drm: Reduce the number of retries whilst reading EDIDs

Linus Torvalds torvalds at linux-foundation.org
Thu Feb 23 13:40:28 PST 2012


On Thu, Feb 23, 2012 at 1:36 PM, Eugeni Dodonov
<eugeni.dodonov at intel.com> wrote:
>
> Perhaps a stupid question, but does you tree has
> http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-next&id=9292f37e1f5c79400254dca46f83313488093825
> from Dave's drm-next?
>
> If it has, it would be the 1st time that I see xrandr take longer than .5s
> with that patch on an Intel GPU. We even added a check for this into
> intel-gpu-tools to warn us if any machine takes that long, and none had hit
> it so far. So if this is the case here, there is something Mac Mini-specific
> indeed to investigate.

Yup, the tree I tested was current -git with the two commits mentioned
in this thread:

   drm: Reduce the number of retries whilst reading EDIDs
   drm: give up on edid retries when i2c bus is not responding

applied separately on top of it.

                Linus


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