diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index 148a0fc..fcaf34b 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -273,8 +273,6 @@
     ctx->mRotMgr->configBegin();
     overlay::Writeback::configBegin();
 
-    Overlay::setDMAMode(Overlay::DMA_LINE_MODE);
-
     for (int32_t i = numDisplays; i >= 0; i--) {
         hwc_display_contents_1_t *list = displays[i];
         int dpy = getDpyforExternalDisplay(ctx, i);
@@ -666,6 +664,8 @@
     CALC_FPS();
     MDPComp::resetIdleFallBack();
     ctx->mVideoTransFlag = false;
+    if(ctx->mRotMgr->getNumActiveSessions() == 0)
+        Overlay::setDMAMode(Overlay::DMA_LINE_MODE);
     //Was locked at the beginning of prepare
     ctx->mDrawLock.unlock();
     return ret;
diff --git a/liboverlay/overlayRotator.h b/liboverlay/overlayRotator.h
index f551f1d..7c1095f 100644
--- a/liboverlay/overlayRotator.h
+++ b/liboverlay/overlayRotator.h
@@ -238,6 +238,7 @@
      */
     void getDump(char *buf, size_t len);
     int getRotDevFd();
+    int getNumActiveSessions() { return mUseCount; }
 private:
     overlay::Rotator *mRot[MAX_ROT_SESS];
     int mUseCount;