diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 0a3d44d..4904955 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -146,6 +146,10 @@
 
     mTransformHint = mSurfaceControl->getTransformHint();
     mBufferItemConsumer->setTransformHint(mTransformHint);
+    SurfaceComposerClient::Transaction()
+            .setFlags(surface, layer_state_t::eEnableBackpressure,
+                      layer_state_t::eEnableBackpressure)
+            .apply();
 
     mNumAcquired = 0;
     mNumFrameAvailable = 0;
@@ -169,13 +173,20 @@
 void BLASTBufferQueue::update(const sp<SurfaceControl>& surface, uint32_t width, uint32_t height,
                               int32_t format) {
     std::unique_lock _lock{mMutex};
-    mSurfaceControl = surface;
-
     if (mFormat != format) {
         mFormat = format;
         mBufferItemConsumer->setDefaultBufferFormat(format);
     }
 
+    SurfaceComposerClient::Transaction t;
+    bool applyTransaction = false;
+    if (!SurfaceControl::isSameSurface(mSurfaceControl, surface)) {
+        mSurfaceControl = surface;
+        t.setFlags(mSurfaceControl, layer_state_t::eEnableBackpressure,
+                   layer_state_t::eEnableBackpressure);
+        applyTransaction = true;
+    }
+
     ui::Size newSize(width, height);
     if (mRequestedSize != newSize) {
         mRequestedSize.set(newSize);
@@ -184,13 +195,15 @@
             // If the buffer supports scaling, update the frame immediately since the client may
             // want to scale the existing buffer to the new size.
             mSize = mRequestedSize;
-            SurfaceComposerClient::Transaction t;
             t.setFrame(mSurfaceControl,
                        {0, 0, static_cast<int32_t>(mSize.width),
                         static_cast<int32_t>(mSize.height)});
-            t.apply();
+            applyTransaction = true;
         }
     }
+    if (applyTransaction) {
+        t.apply();
+    }
 }
 
 static void transactionCallbackThunk(void* context, nsecs_t latchTime,
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index e5e10a0..2946aae 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -183,12 +183,9 @@
     SAFE_PARCEL(input.readUint32, &layerStack);
     SAFE_PARCEL(input.readFloat, &alpha);
 
-    uint32_t tmpUint32 = 0;
-    SAFE_PARCEL(input.readUint32, &tmpUint32);
-    flags = static_cast<uint8_t>(tmpUint32);
+    SAFE_PARCEL(input.readUint32, &flags);
 
-    SAFE_PARCEL(input.readUint32, &tmpUint32);
-    mask = static_cast<uint8_t>(tmpUint32);
+    SAFE_PARCEL(input.readUint32, &mask);
 
     SAFE_PARCEL(matrix.read, input);
     SAFE_PARCEL(input.read, crop_legacy);
@@ -229,6 +226,7 @@
         SAFE_PARCEL(input.read, *acquireFence);
     }
 
+    uint32_t tmpUint32 = 0;
     SAFE_PARCEL(input.readUint32, &tmpUint32);
     dataspace = static_cast<ui::Dataspace>(tmpUint32);
 
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 78f655a..96c099b 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -934,7 +934,8 @@
         return *this;
     }
     if ((mask & layer_state_t::eLayerOpaque) || (mask & layer_state_t::eLayerHidden) ||
-        (mask & layer_state_t::eLayerSecure) || (mask & layer_state_t::eLayerSkipScreenshot)) {
+        (mask & layer_state_t::eLayerSecure) || (mask & layer_state_t::eLayerSkipScreenshot) ||
+        (mask & layer_state_t::eEnableBackpressure)) {
         s->what |= layer_state_t::eFlagsChanged;
     }
     s->flags &= ~mask;
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index 83a9d33..b1305c6 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -82,6 +82,10 @@
         eLayerOpaque = 0x02,         // SURFACE_OPAQUE
         eLayerSkipScreenshot = 0x40, // SKIP_SCREENSHOT
         eLayerSecure = 0x80,         // SECURE
+        // Queue up BufferStateLayer buffers instead of dropping the oldest buffer when this flag is
+        // set. This blocks the client until all the buffers have been presented. If the buffers
+        // have presentation timestamps, then we may drop buffers.
+        eEnableBackpressure = 0x100, // ENABLE_BACKPRESSURE
     };
 
     enum {
@@ -157,8 +161,8 @@
     uint32_t h;
     uint32_t layerStack;
     float alpha;
-    uint8_t flags;
-    uint8_t mask;
+    uint32_t flags;
+    uint32_t mask;
     uint8_t reserved;
     matrix22_t matrix;
     Rect crop_legacy;