1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 76993ac16cc..8b2bfc005c5 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1237,9 +1237,11 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 
         /* Set the SDVO control regs. */
         if (IS_I965G(dev)) {
-                sdvox |= SDVO_BORDER_ENABLE |
-                        SDVO_VSYNC_ACTIVE_HIGH |
-                        SDVO_HSYNC_ACTIVE_HIGH;
+                sdvox |= SDVO_BORDER_ENABLE;
+                if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+                        sdvox |= SDVO_VSYNC_ACTIVE_HIGH;
+                if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+                        sdvox |= SDVO_HSYNC_ACTIVE_HIGH;
         } else {
                 sdvox |= I915_READ(sdvo_priv->sdvo_reg);
                 switch (sdvo_priv->sdvo_reg) {