drm/i915: Disable FBC by default also on Haswell and later

It causes black screen on bootup and is approximately 100x slower than
running with FBC disabled, so the GPU runs at a high frequency for much
longer - completely contrary to the power saving claims. It also still
has mutex deadlocks in multi-head scenarios, which can lead to a
system/X lockup. These bugs were known before FBC was enabled by default
on Haswell and still have not been fixed.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79716
Reported-and-tested-by: Jon Kristensen <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Daniel Vetter <[email protected]>
Cc: [email protected]
[Jani: update subject to reflect the actual change]
Signed-off-by: Jani Nikula <[email protected]>

0 files changed, 0 insertions, 0 deletions