[Intel-gfx] [PATCH] drm/i915: Check for a change in fb size, and reconfigure the pipe

[Ville Syrjälä]

On Tue, Nov 13, 2012 at 12:15:10PM +0000, Chris Wilson wrote:
> In the slightly unusual case where the pipe is programmed to the same
> modeline, but the framebuffer is a new size, we need to resetup the
> panel fitter as appropriate and this requires a full modeset. This can
> only occur currently as part of the BIOS takeover where there are
> slightly different semantics governing how the panel fitter and
> framebuffer is programmed relative to the modeline.

Hmm. I don't get it. Why would the framebuffer size affect the panel
fitter configuration?

-- 
Ville Syrjälä
Intel OTC