diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 0a0625761f42..e3e9c98eaf52 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -243,6 +243,14 @@ static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val)
 	if (intel_sdvo->sdvo_reg == PCH_SDVOB) {
 		I915_WRITE(intel_sdvo->sdvo_reg, val);
 		POSTING_READ(intel_sdvo->sdvo_reg);
+		/*
+		 * HW workaround, need to write this twice for issue
+		 * that may result in first write getting masked.
+		 */
+		if (HAS_PCH_IBX(dev)) {
+			I915_WRITE(intel_sdvo->sdvo_reg, val);
+			POSTING_READ(intel_sdvo->sdvo_reg);
+		}
 		return;
 	}