Most (but not all) of these were found by using
  codespell --builtin clear,rare,usage,informal,code,names
but not everything reported by that was fixed.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

Commit 0c6987df in June 2008 disabled XAA offscreen pixmaps per default,
as they were broken, leaving XAA only able to accelerate operations
directly on the screen pixmap and nowhere else, eliminating acceleration
for basically every modern toolkit, and any composited environment.

So, it hasn't worked for over four years.  No-one's even come close to
fixing it.

RIP.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>

This document covers both API and xorg.conf usage of the new mode setting
APIs.
(cherry picked from commit a59c31b0f7b94ed1f395c7586c37ef5fe7ba2a25)