Default value of Option "EXAOptimizeMigration" in xserver 1.6

[Michel Dänzer]

Unfortunately, there are still bugs left in EXA which prevent it from
working 100% correctly with the option enabled, see

http://bugs.freedesktop.org/show_bug.cgi?id=16416

http://bugs.freedesktop.org/show_bug.cgi?id=19940

I think the overall impact is relatively small (core font rendering in
the former case and possibly in the latter as well) compared to the
performance benefits of having it enabled, so I see two basic options:

      * Keep it enabled by default and document in the release notes to
        try disabling it when encountering corruption such as the one
        described in the above bug reports.
      * Leave it disabled by default again and document in the release
        notes that enabling it may improve performance with EXA but may
        also cause visual corruption in rare cases.

What do you think Keith?


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer