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authorAlex Shi <alex.shi@intel.com>2010-11-19 10:33:55 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2010-11-19 10:36:21 +0100
commit16c59ef33b389217c29122235e475557bc1412a1 (patch)
tree3f6f80a9582d83b0ae051bc8f6d51cd25d2a992a /drivers/gpu/drm
parentdrm/i915: Take advantage of auto-polling CRT hotplug detection on PCH hardware (diff)
downloadlinux-16c59ef33b389217c29122235e475557bc1412a1.tar.xz
linux-16c59ef33b389217c29122235e475557bc1412a1.zip
drm/i915: Disable FBC on Ironlake to save 1W
Frame buffer compression is broken on Ironlake due to buggy hardware. Currently it is disabled through chicken bits, but it still consumes over 1W more than if we simply never attempt to enable the FBC code paths. Signed-off-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 80745f85902c..f737960712e6 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -150,7 +150,8 @@ static const struct intel_device_info intel_ironlake_d_info = {
static const struct intel_device_info intel_ironlake_m_info = {
.gen = 5, .is_mobile = 1,
- .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,
+ .need_gfx_hws = 1, .has_rc6 = 1, .has_hotplug = 1,
+ .has_fbc = 0, /* disabled due to buggy hardware */
.has_bsd_ring = 1,
};