diff --git a/libhwcomposer/hwc_qclient.cpp b/libhwcomposer/hwc_qclient.cpp
index ee31e6c..c130208 100644
--- a/libhwcomposer/hwc_qclient.cpp
+++ b/libhwcomposer/hwc_qclient.cpp
@@ -54,7 +54,7 @@
     ALOGD_IF(QCLIENT_DEBUG,"QClient Destructor invoked");
 }
 
-void QClient::notifyCallback(uint32_t msg, uint32_t value) {
+status_t QClient::notifyCallback(uint32_t msg, uint32_t value) {
     switch(msg) {
         case IQService::SECURING:
             securing(value);
@@ -62,9 +62,13 @@
         case IQService::UNSECURING:
             unsecuring(value);
             break;
+        case IQService::SCREEN_REFRESH:
+            return screenRefresh();
+            break;
         default:
-            return;
+            return NO_ERROR;
     }
+    return NO_ERROR;
 }
 
 void QClient::securing(uint32_t startEnd) {
@@ -93,4 +97,14 @@
         mHwcContext->proc->invalidate(mHwcContext->proc);
 }
 
+android::status_t QClient::screenRefresh() {
+    status_t result = NO_INIT;
+#ifdef QCOM_BSP
+    if(mHwcContext->proc) {
+        mHwcContext->proc->invalidate(mHwcContext->proc);
+        result = NO_ERROR;
+    }
+#endif
+    return result;
+}
 }
diff --git a/libhwcomposer/hwc_qclient.h b/libhwcomposer/hwc_qclient.h
index 0ee6de1..9cb2680 100644
--- a/libhwcomposer/hwc_qclient.h
+++ b/libhwcomposer/hwc_qclient.h
@@ -46,7 +46,7 @@
 public:
     QClient(hwc_context_t *ctx);
     virtual ~QClient();
-    virtual void notifyCallback(uint32_t msg, uint32_t value);
+    virtual android::status_t notifyCallback(uint32_t msg, uint32_t value);
 
 private:
     //Notifies of Media Player death
@@ -59,6 +59,7 @@
 
     void securing(uint32_t startEnd);
     void unsecuring(uint32_t startEnd);
+    android::status_t screenRefresh();
 
     hwc_context_t *mHwcContext;
     const android::sp<android::IMediaDeathNotifier> mMPDeathNotifier;
diff --git a/libqservice/IQClient.cpp b/libqservice/IQClient.cpp
index 4ff67dc..30fbb64 100644
--- a/libqservice/IQClient.cpp
+++ b/libqservice/IQClient.cpp
@@ -41,12 +41,14 @@
     BpQClient(const sp<IBinder>& impl)
         : BpInterface<IQClient>(impl) {}
 
-    virtual void notifyCallback(uint32_t msg, uint32_t value) {
+    virtual status_t notifyCallback(uint32_t msg, uint32_t value) {
         Parcel data, reply;
         data.writeInterfaceToken(IQClient::getInterfaceDescriptor());
         data.writeInt32(msg);
         data.writeInt32(value);
         remote()->transact(NOTIFY_CALLBACK, data, &reply);
+        status_t result = reply.readInt32();
+        return result;
     }
 };
 
diff --git a/libqservice/IQClient.h b/libqservice/IQClient.h
index 68d8275..a28f826 100644
--- a/libqservice/IQClient.h
+++ b/libqservice/IQClient.h
@@ -33,7 +33,7 @@
 {
 public:
     DECLARE_META_INTERFACE(QClient);
-    virtual void notifyCallback(uint32_t msg, uint32_t value) = 0;
+    virtual android::status_t notifyCallback(uint32_t msg, uint32_t value) = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/libqservice/IQService.cpp b/libqservice/IQService.cpp
index 7a88bdf..6c6f7b6 100644
--- a/libqservice/IQService.cpp
+++ b/libqservice/IQService.cpp
@@ -63,6 +63,14 @@
         data.writeStrongBinder(client->asBinder());
         remote()->transact(CONNECT, data, &reply);
     }
+
+    virtual status_t screenRefresh() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IQService::getInterfaceDescriptor());
+        remote()->transact(SCREEN_REFRESH, data, &reply);
+        status_t result = reply.readInt32();
+        return result;
+    }
 };
 
 IMPLEMENT_META_INTERFACE(QService, "android.display.IQService");
@@ -88,7 +96,8 @@
     switch(code) {
         case SECURING: {
             if(!permission) {
-                ALOGE("display.qservice SECURING access denied: pid=%d uid=%d process=%s",
+                ALOGE("display.qservice SECURING access denied: \
+                      pid=%d uid=%d process=%s",
                       callerPid, callerUid, callingProcName);
                 return PERMISSION_DENIED;
             }
@@ -99,7 +108,8 @@
         } break;
         case UNSECURING: {
             if(!permission) {
-                ALOGE("display.qservice UNSECURING access denied: pid=%d uid=%d process=%s",
+                ALOGE("display.qservice UNSECURING access denied: \
+                      pid=%d uid=%d process=%s",
                       callerPid, callerUid, callingProcName);
                 return PERMISSION_DENIED;
             }
@@ -111,7 +121,8 @@
         case CONNECT: {
             CHECK_INTERFACE(IQService, data, reply);
             if(callerUid != AID_GRAPHICS) {
-                ALOGE("display.qservice CONNECT access denied: pid=%d uid=%d process=%s",
+                ALOGE("display.qservice CONNECT access denied: \
+                      pid=%d uid=%d process=%s",
                       callerPid, callerUid, callingProcName);
                 return PERMISSION_DENIED;
             }
@@ -120,6 +131,16 @@
             connect(client);
             return NO_ERROR;
         } break;
+        case SCREEN_REFRESH: {
+            CHECK_INTERFACE(IQService, data, reply);
+            if(callerUid != AID_GRAPHICS) {
+                ALOGE("display.qservice SCREEN_REFRESH access denied: \
+                      pid=%d uid=%d process=%s",callerPid,
+                      callerUid, callingProcName);
+                return PERMISSION_DENIED;
+            }
+            return screenRefresh();
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/libqservice/IQService.h b/libqservice/IQService.h
index 70e6c64..79e831d 100644
--- a/libqservice/IQService.h
+++ b/libqservice/IQService.h
@@ -40,6 +40,7 @@
         SECURING = android::IBinder::FIRST_CALL_TRANSACTION,
         UNSECURING, // Hardware unsecuring start/end notification
         CONNECT,
+        SCREEN_REFRESH,
     };
     enum {
         END = 0,
@@ -48,6 +49,7 @@
     virtual void securing(uint32_t startEnd) = 0;
     virtual void unsecuring(uint32_t startEnd) = 0;
     virtual void connect(const android::sp<qClient::IQClient>& client) = 0;
+    virtual android::status_t screenRefresh() = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/libqservice/QService.cpp b/libqservice/QService.cpp
index 8fc7319..54e285c 100644
--- a/libqservice/QService.cpp
+++ b/libqservice/QService.cpp
@@ -63,6 +63,14 @@
     mClient = client;
 }
 
+android::status_t QService::screenRefresh() {
+    status_t result = NO_ERROR;
+    if(mClient.get()) {
+        result = mClient->notifyCallback(SCREEN_REFRESH, 0);
+    }
+    return result;
+}
+
 void QService::init()
 {
     if(!sQService) {
diff --git a/libqservice/QService.h b/libqservice/QService.h
index 4f7e570..268bf81 100644
--- a/libqservice/QService.h
+++ b/libqservice/QService.h
@@ -48,6 +48,7 @@
     virtual void securing(uint32_t startEnd);
     virtual void unsecuring(uint32_t startEnd);
     virtual void connect(const android::sp<qClient::IQClient>& client);
+    virtual android::status_t screenRefresh();
     static void init();
 private:
     QService();