[Intel-gfx] Sandy Bridge issue: 3d clipped to window offset (0, 0)

[Chris Wilson]

On Tue, 11 Jan 2011 18:12:54 +1100, Lindsay Roberts <lindsay.roberts.os at gmail.com> wrote:
> Hi,
> 
> I'm having some interesting behaviour with Sandy Bridge (Chip
> SANDYBRIDGE_M_GT2) and the 2010Q4 package.
> 
> 3D draws, but the only part of the drawn content I see is the
> intersection of the actual current window content rect and the
> rectangle from (0, 0) to the width and height of the window at
> creation time. Any changes to the position or size of a GL window do
> not change this clipped boundary, although the actual content is
> offset and/or scaled correctly (but still clipped).

That sounds reminiscent of a bug the shadow+dri code has. Check that it is
not falling back to using software 2D and is able to use the BLT engine.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre