Commit d56d8b28 authored by Chris Wilson's avatar Chris Wilson Committed by Keith Packard

drm/i915:: Disable FBC on SandyBridge

Enabling FBC is causing the BLT ring to run between 10-100x slower than
normal and frequently lockup. The interim solution is disable FBC once
more until we know why.
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarKeith Packard <keithp@keithp.com>
parent acb42a3b
...@@ -1872,7 +1872,7 @@ static void intel_update_fbc(struct drm_device *dev) ...@@ -1872,7 +1872,7 @@ static void intel_update_fbc(struct drm_device *dev)
if (enable_fbc < 0) { if (enable_fbc < 0) {
DRM_DEBUG_KMS("fbc set to per-chip default\n"); DRM_DEBUG_KMS("fbc set to per-chip default\n");
enable_fbc = 1; enable_fbc = 1;
if (INTEL_INFO(dev)->gen <= 5) if (INTEL_INFO(dev)->gen <= 6)
enable_fbc = 0; enable_fbc = 0;
} }
if (!enable_fbc) { if (!enable_fbc) {
......
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