[PATCH] drm: ignore disconnected <-> unknown status changes

[Alex Deucher]

On Thu, Aug 2, 2012 at 3:21 AM, Knut Petersen <Knut_Petersen at t-online.de> wrote:
> On an AOpen i915GMm-hfs the hotplug events generated
> by transitions between connector_status_unknown and
> connector_status_disconnected cause screen distortions.
>
> The attached patch cures the problem by disabling the
> generation of hotplug events in those cases. That should
> be safe for everybody as the only relevant changes are
> those from / to connector_status_connected.

Seems reasonable to me.  We should just drop unknown.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

>
> cu,
>  Knut
>
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