diff --git a/[refs] b/[refs]
index 080225007880..c546b797dd86 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: be9a3dbf65a69933b06011f049b1e2fdfa6bc8b9
+refs/heads/master: a392a10367508930607a17ab60b4148f86adf2bc
diff --git a/trunk/drivers/gpu/drm/i915/intel_display.c b/trunk/drivers/gpu/drm/i915/intel_display.c
index ab8162afb4a7..445fdafc131f 100644
--- a/trunk/drivers/gpu/drm/i915/intel_display.c
+++ b/trunk/drivers/gpu/drm/i915/intel_display.c
@@ -3736,6 +3736,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 			if (dev_priv->lvds_dither) {
 				if (HAS_PCH_SPLIT(dev)) {
 					pipeconf |= PIPE_ENABLE_DITHER;
+					pipeconf &= ~PIPE_DITHER_TYPE_MASK;
 					pipeconf |= PIPE_DITHER_TYPE_ST01;
 				} else
 					lvds |= LVDS_ENABLE_DITHER;