[Bug 71260] SNA in zaphod mode (multiple screens) has rendering issues with Xnest

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71260

--- Comment #42 from intelgraphics7 at gmx-topmail.de ---
(In reply to comment #40)
> Ah, bo->tiling is the layout of the surface in GPU memory. The GPU prefers a
> tiled allocation to improve TLB hitrate and spatial coherency. As such, we
> allocate all surfaces as tiled when possible - especially the frontbuffer.
> So in effect your patch just says not to use nxm tiling code.

Yes, that's what the patch does and it is since nxm seems not to work with
non-tiling buffers. Doesn't that make sense?

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