diff --git a/msm/dp/dp_debug.c b/msm/dp/dp_debug.c
index 22842351b7..9bc7542596 100644
--- a/msm/dp/dp_debug.c
+++ b/msm/dp/dp_debug.c
@@ -54,11 +54,18 @@ struct dp_debug_private {
 static int dp_debug_sim_hpd_cb(void *arg, bool hpd, bool hpd_irq)
 {
 	struct dp_debug_private *debug = arg;
+	int vdo = 0;
 
-	if (hpd_irq)
-		return debug->hpd->simulate_attention(debug->hpd, 0);
-	else
+	if (hpd_irq) {
+		vdo |= BIT(7);
+
+		if (hpd)
+			vdo |= BIT(8);
+
+		return debug->hpd->simulate_attention(debug->hpd, vdo);
+	} else {
 		return debug->hpd->simulate_connect(debug->hpd, hpd);
+	}
 }
 
 static int dp_debug_attach_sim_bridge(struct dp_debug_private *debug)
diff --git a/msm/dp/dp_mst_sim.c b/msm/dp/dp_mst_sim.c
index c9f56d4906..c358ae7ffa 100644
--- a/msm/dp/dp_mst_sim.c
+++ b/msm/dp/dp_mst_sim.c
@@ -341,7 +341,7 @@ static void dp_sim_host_hpd_irq(void *host_dev)
 	struct dp_sim_device *sim_dev = host_dev;
 
 	if (sim_dev->hpd_cb)
-		sim_dev->hpd_cb(sim_dev->host_dev, false, true);
+		sim_dev->hpd_cb(sim_dev->host_dev, true, true);
 }
 
 int dp_sim_set_sim_mode(struct dp_aux_bridge *bridge, u32 sim_mode)