diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index e3e0b0a..2213259 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -102,6 +102,7 @@
     if (mType >= DisplayDevice::DISPLAY_VIRTUAL)
         window->setSwapInterval(window, 0);
 
+    mConfig = config;
     mDisplay = display;
     mSurface = surface;
     mFormat  = format;
@@ -397,6 +398,22 @@
     return NO_ERROR;
 }
 
+void DisplayDevice::setDisplaySize(const int newWidth, const int newHeight) {
+    dirtyRegion.set(getBounds());
+
+    mDisplaySurface->resizeBuffers(newWidth, newHeight);
+
+    ANativeWindow* const window = mNativeWindow.get();
+    mSurface = eglCreateWindowSurface(mDisplay, mConfig, window, NULL);
+    eglQuerySurface(mDisplay, mSurface, EGL_WIDTH,  &mDisplayWidth);
+    eglQuerySurface(mDisplay, mSurface, EGL_HEIGHT, &mDisplayHeight);
+
+    LOG_FATAL_IF(mDisplayWidth != newWidth,
+                "Unable to set new width to %d", newWidth);
+    LOG_FATAL_IF(mDisplayHeight != newHeight,
+                "Unable to set new height to %d", newHeight);
+}
+
 void DisplayDevice::setProjection(int orientation,
         const Rect& newViewport, const Rect& newFrame) {
     Rect viewport(newViewport);