Ported over from the old UMS list.  Unfortunately they're still
necessary especially on older laptop platforms.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=22126.
Tested-by: NXavier <shiningxc@gmail.com>
Tested-by: NDiego Escalante Urrelo <diegoe@gnome.org>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>