Redefine the clone mask to avoid that he SDVO-VGA can be cloned to VGA.
---
 drivers/gpu/drm/i915/intel_crt.c  |    4 +---
 drivers/gpu/drm/i915/intel_sdvo.c |    6 ++----
 2 files changed, 3 insertions(+), 7 deletions(-)

Index: linux-2.6/drivers/gpu/drm/i915/intel_crt.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_crt.c	2010-02-03 14:23:01.000000000 +0800
+++ linux-2.6/drivers/gpu/drm/i915/intel_crt.c	2010-02-04 14:10:40.000000000 +0800
@@ -540,9 +540,7 @@
 	}
 
 	intel_output->type = INTEL_OUTPUT_ANALOG;
-	intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
-				   (1 << INTEL_ANALOG_CLONE_BIT) |
-				   (1 << INTEL_SDVO_LVDS_CLONE_BIT);
+	intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT);
 	intel_output->crtc_mask = (1 << 0) | (1 << 1);
 	connector->interlace_allowed = 0;
 	connector->doublescan_allowed = 0;
Index: linux-2.6/drivers/gpu/drm/i915/intel_sdvo.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_sdvo.c	2010-02-03 16:48:02.000000000 +0800
+++ linux-2.6/drivers/gpu/drm/i915/intel_sdvo.c	2010-02-04 14:08:44.000000000 +0800
@@ -2357,15 +2357,13 @@
 		sdvo_priv->controlled_output = SDVO_OUTPUT_RGB0;
 		encoder->encoder_type = DRM_MODE_ENCODER_DAC;
 		connector->connector_type = DRM_MODE_CONNECTOR_VGA;
-		intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
-					(1 << INTEL_ANALOG_CLONE_BIT);
+		intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT);
 	} else if (flags & SDVO_OUTPUT_RGB1) {
 
 		sdvo_priv->controlled_output = SDVO_OUTPUT_RGB1;
 		encoder->encoder_type = DRM_MODE_ENCODER_DAC;
 		connector->connector_type = DRM_MODE_CONNECTOR_VGA;
-		intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
-					(1 << INTEL_ANALOG_CLONE_BIT);
+		intel_output->clone_mask = (1 << INTEL_SDVO_NON_TV_CLONE_BIT);
 	} else if (flags & SDVO_OUTPUT_CVBS0) {
 
 		sdvo_priv->controlled_output = SDVO_OUTPUT_CVBS0;