diff --git a/GPU/GLES/Framebuffer.cpp b/GPU/GLES/Framebuffer.cpp
index 01290f53e6..8d7e93e503 100644
--- a/GPU/GLES/Framebuffer.cpp
+++ b/GPU/GLES/Framebuffer.cpp
@@ -1603,6 +1603,36 @@ void FramebufferManager::UpdateFromMemory(u32 addr, int size, bool safe) {
 	}
 }
 
+void FramebufferManager::NotifyBlockTransfer(u32 dst, u32 src) {
+#ifndef USING_GLES2
+	if (!reportedBlits_.insert(std::make_pair(dst, src)).second) {
+		// Already reported/checked.
+		return;
+	}
+
+	bool dstBuffer = false;
+	bool srcBuffer = false;
+
+	for (size_t i = 0; i < vfbs_.size(); ++i) {
+		VirtualFramebuffer *vfb = vfbs_[i];
+		if (MaskedEqual(vfb->fb_address, dst)) {
+			dstBuffer = true;
+		}
+		if (MaskedEqual(vfb->fb_address, src)) {
+			srcBuffer = true;
+		}
+	}
+
+	if (dstBuffer && srcBuffer) {
+		WARN_LOG_REPORT(G3D, "Intra buffer block transfer (not supported) %08x -> %08x", src, dst);
+	} else if (dstBuffer) {
+		WARN_LOG_REPORT(G3D, "Block transfer upload (not supported) %08x -> %08x", src, dst);
+	} else if (srcBuffer && g_Config.iRenderingMode == FB_BUFFERED_MODE) {
+		WARN_LOG_REPORT(G3D, "Block transfer download (not supported) %08x -> %08x", src, dst);
+	}
+#endif
+}
+
 void FramebufferManager::Resized() {
 	resized_ = true;
 }
diff --git a/GPU/GLES/Framebuffer.h b/GPU/GLES/Framebuffer.h
index 0cbc2a093a..0a18b5d227 100644
--- a/GPU/GLES/Framebuffer.h
+++ b/GPU/GLES/Framebuffer.h
@@ -138,6 +138,9 @@ public:
 	void UpdateFromMemory(u32 addr, int size, bool safe);
 	void SetLineWidth();
 
+	// Just for logging right now.  Might remove/change.
+	void NotifyBlockTransfer(u32 dst, u32 src);
+
 #ifdef USING_GLES2
   void ReadFramebufferToMemory(VirtualFramebuffer *vfb, bool sync = true);
 #else
@@ -230,4 +233,6 @@ private:
 	AsyncPBO *pixelBufObj_; //this isn't that large
 	u8 currentPBO_;
 #endif
+
+	std::set<std::pair<u32, u32>> reportedBlits_;
 };
diff --git a/GPU/GLES/GLES_GPU.cpp b/GPU/GLES/GLES_GPU.cpp
index a9e918ca58..1bd87cf69e 100644
--- a/GPU/GLES/GLES_GPU.cpp
+++ b/GPU/GLES/GLES_GPU.cpp
@@ -1571,6 +1571,7 @@ void GLES_GPU::DoBlockTransfer() {
 	}
 
 	// TODO: Notify all overlapping FBOs that they need to reload.
+	framebufferManager_.NotifyBlockTransfer(dstBasePtr, srcBasePtr);
 
 	textureCache_.Invalidate(dstBasePtr + (dstY * dstStride + dstX) * bpp, height * dstStride * bpp, GPU_INVALIDATE_HINT);
 	if (Memory::IsRAMAddress(srcBasePtr) && Memory::IsVRAMAddress(dstBasePtr)) {