diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index 88ef392..c5a14b0 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -147,6 +147,10 @@
             mFbProducerSlot, fbBuffer.get(),
             mOutputProducerSlot, outBuffer.get());
 
+    // At this point we know the output buffer acquire fence,
+    // so update HWC state with it.
+    mHwc.setOutputBuffer(mDisplayId, mOutputFence, outBuffer);
+
     return mHwc.fbPost(mDisplayId, mFbFence, fbBuffer);
 }
 
@@ -415,7 +419,11 @@
         return result;
     mOutputProducerSlot = mapSource2ProducerSlot(SOURCE_SINK, sslot);
 
-    result = mHwc.setOutputBuffer(mDisplayId, mOutputFence,
+    // On GLES-only frames, we don't have the right output buffer acquire fence
+    // until after GLES calls queueBuffer(). So here we just set the buffer
+    // (for use in HWC prepare) but not the fence; we'll call this again with
+    // the proper fence once we have it.
+    result = mHwc.setOutputBuffer(mDisplayId, Fence::NO_FENCE,
             mProducerBuffers[mOutputProducerSlot]);
 
     return result;