--- drivers/gpu/drm/i915/intel_dp.c
+++ drivers/gpu/drm/i915/intel_dp.c
@@ -1949,6 +1949,18 @@
                ironlake_edp_panel_vdd_off(intel_dp);
        }
 
+       /* confirm the existence of the device with a simple probe */
+       if (intel_encoder->type == INTEL_OUTPUT_EDP &&
+           intel_dp_aux_native_read(intel_dp,
+                                    0x000, intel_dp->dpcd,
+                                    sizeof (intel_dp->dpcd))
+           != sizeof(intel_dp->dpcd)) {
+               kfree(intel_dp);
+               kfree(intel_connector);
+               return;
+       }
+
+
        intel_encoder->hot_plug = intel_dp_hot_plug;
 
        if (is_edp(intel_dp)) {