diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index db7b6eaf8c85..1d28a2560ae0 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -45,6 +45,7 @@
 
 #include "g4x_dp.h"
 #include "i915_drv.h"
+#include "i915_irq.h"
 #include "i915_reg.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
@@ -5377,6 +5378,15 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 		goto out_vdd_off;
 	}
 
+	/*
+	 * Enable HPD sense for live status check.
+	 * intel_hpd_irq_setup() will turn it off again
+	 * if it's no longer needed later.
+	 *
+	 * The DPCD probe below will make sure VDD is on.
+	 */
+	intel_hpd_enable_detection(encoder);
+
 	/* Cache DPCD and EDID for edp. */
 	has_dpcd = intel_edp_init_dpcd(intel_dp);
 
@@ -5388,6 +5398,24 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 		goto out_vdd_off;
 	}
 
+	/*
+	 * VBT and straps are liars. Also check HPD as that seems
+	 * to be the most reliable piece of information available.
+	 */
+	if (!intel_digital_port_connected(encoder)) {
+		/*
+		 * If this fails, presume the DPCD answer came
+		 * from some other port using the same AUX CH.
+		 *
+		 * FIXME maybe cleaner to check this before the
+		 * DPCD read? Would need sort out the VDD handling...
+		 */
+		drm_info(&dev_priv->drm,
+			 "[ENCODER:%d:%s] HPD is down, disabling eDP\n",
+			 encoder->base.base.id, encoder->base.name);
+		goto out_vdd_off;
+	}
+
 	mutex_lock(&dev_priv->drm.mode_config.mutex);
 	drm_edid = drm_edid_read_ddc(connector, &intel_dp->aux.ddc);
 	if (!drm_edid) {