[Intel-gfx] [PATCH 4/4] drm/i915: re-enable rc6 for ironlake

[Jesse Barnes]

On Wed, 27 Apr 2011 08:49:28 +0100
Chris Wilson <chris at chris-wilson.co.uk> wrote:

> On Fri, 18 Mar 2011 16:12:48 -0700, Ben Widawsky <ben at bwidawsk.net> wrote:
> > The previous patches should fix enough of the known issues to try
> > re-enabling rc6 for general consumption
> 
> Yay, and they bring back the old bugs! :)
> 
> So upon enabling fbc on a 2560x1440 external panel, it goes blank again.
> The same symptoms as prompted disabling fbc last year.  Can anyone confirm
> this bad behaviour?

Re-enabling rc6 causes problems when you enable fbc?

We should probably just enable fbc on the pipe connected to the
internal panel (if any) and keep it disabled otherwise.

Jesse