diff --git a/libs/vr/libpdx/private/pdx/service.h b/libs/vr/libpdx/private/pdx/service.h
index 0d30614..13aa3e9 100644
--- a/libs/vr/libpdx/private/pdx/service.h
+++ b/libs/vr/libpdx/private/pdx/service.h
@@ -589,6 +589,14 @@
   }
 
   /*
+   * Return true if a channel with the given ID exists in the Channel map.
+   */
+  bool HasChannelId(int channel_id) const {
+    std::lock_guard<std::mutex> autolock(channels_mutex_);
+    return channels_.find(channel_id) != channels_.end();
+  }
+
+  /*
    * Subclasses of Service may override this method to provide a text string
    * describing the state of the service. This method is called by
    * HandleSystemMessage in response to the standard
diff --git a/libs/vr/libvrflinger/display_manager_service.cpp b/libs/vr/libvrflinger/display_manager_service.cpp
index ef8cca3..34b3b0a 100644
--- a/libs/vr/libvrflinger/display_manager_service.cpp
+++ b/libs/vr/libvrflinger/display_manager_service.cpp
@@ -45,6 +45,14 @@
   const int user_id = message.GetEffectiveUserId();
   const bool trusted = user_id == AID_ROOT || IsTrustedUid(user_id);
 
+  // Check if the display_manager_ has a defunct channel.
+  if (display_manager_ && !HasChannelId(display_manager_->channel_id())) {
+    ALOGE("DisplayManagerService::OnChannelOpen: Found defunct channel %d with "
+          "no OnChannelClose, clearing prior display manager.",
+          display_manager_->channel_id());
+    display_manager_ = nullptr;
+  }
+
   // Prevent more than one display manager from registering at a time or
   // untrusted UIDs from connecting.
   if (display_manager_ || !trusted) {