tree dbd5629ce6e09ef67c2891cb5d3f535461f7f424
parent fd2e8ea597222b8f38ae8948776a61ea7958232e
author Jesse Barnes <jbarnes@virtuousgeek.org> 1265481713 -0800
committer Eric Anholt <eric@anholt.net> 1265840833 -0800

drm/i915: handle FBC and self-refresh better

On 945, we need to avoid entering self-refresh if the compressor is
busy, or we may cause display FIFO underruns leading to ugly flicker.

Fixes fdo bug #24314, kernel bug #15043.

Tested-by: Alexander Lam <lambchop468@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Julien Cristau <jcristau@debian.org> (fd.o #25371)
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>