[Intel-gfx] Flickering i915

[Jesse Barnes]

On Mon, 03 Aug 2009 13:01:24 +0100
Chris Wilson <chris at chris-wilson.co.uk> wrote:

> I'm experiencing a flicker (a horizontal shift) on the display with
> every execution of a batchbuffer, using an i915 with .31-rc5 +
> drm-intel-next.
> 
> Git bisect points to:
> commit 920338ec20c06452dbdc24336ce4a6a8b86fb682
> Author: Jesse Barnes <jbarnes at virtuousgeek.org>
> Date:   Tue Jul 14 10:15:56 2009 -0700
> 
>     drm/i915: FIFO watermark calculation fixes
>     
> And I verified that the problem still occurs with both of Jesse's
> later fixes applied.
> -ickle

Hopefully it'll be easy to fix with the debug output of a kernel
running with the last two patches applied.

Jesse