diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 4573382..8d00a3d 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -2002,6 +2002,10 @@
         outputDesc->stop();
         return status;
     }
+    if (client->hasPreferredDevice()) {
+        // playback activity with preferred device impacts routing occurred, inform upper layers
+        mpClientInterface->onRoutingUpdated();
+    }
     if (delayMs != 0) {
         usleep(delayMs * 1000);
     }
@@ -2247,6 +2251,11 @@
     }
     sp<TrackClientDescriptor> client = outputDesc->getClient(portId);
 
+    if (client->hasPreferredDevice(true)) {
+        // playback activity with preferred device impacts routing occurred, inform upper layers
+        mpClientInterface->onRoutingUpdated();
+    }
+
     ALOGV("stopOutput() output %d, stream %d, session %d",
           outputDesc->mIoHandle, client->stream(), client->session());