diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index ba4c198..49e8bc0 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -286,6 +286,15 @@
     return mSource[SOURCE_SINK]->setBufferCount(bufferCount);
 }
 
+status_t VirtualDisplaySurface::setMaxDequeuedBufferCount(
+        int maxDequeuedBuffers) {
+    return mSource[SOURCE_SINK]->setMaxDequeuedBufferCount(maxDequeuedBuffers);
+}
+
+status_t VirtualDisplaySurface::setAsyncMode(bool async) {
+    return mSource[SOURCE_SINK]->setAsyncMode(async);
+}
+
 status_t VirtualDisplaySurface::dequeueBuffer(Source source,
         PixelFormat format, uint32_t usage, int* sslot, sp<Fence>* fence) {
     LOG_FATAL_IF(mDisplayId < 0, "mDisplayId=%d but should not be < 0.", mDisplayId);
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
index 6298751..c315562 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.h
@@ -99,6 +99,8 @@
     //
     virtual status_t requestBuffer(int pslot, sp<GraphicBuffer>* outBuf);
     virtual status_t setBufferCount(int bufferCount);
+    virtual status_t setMaxDequeuedBufferCount(int maxDequeuedBuffers);
+    virtual status_t setAsyncMode(bool async);
     virtual status_t dequeueBuffer(int* pslot, sp<Fence>* fence, bool async,
             uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
     virtual status_t detachBuffer(int slot);