diff --git a/displayengine/libs/core/display_primary.cpp b/displayengine/libs/core/display_primary.cpp
index 8c56799..faea0da 100644
--- a/displayengine/libs/core/display_primary.cpp
+++ b/displayengine/libs/core/display_primary.cpp
@@ -261,7 +261,6 @@
 }
 
 DisplayError DisplayPrimary::VSync(int64_t timestamp) {
-  SCOPE_LOCK(locker_);
   if (vsync_enable_) {
     DisplayEventVSync vsync;
     vsync.timestamp = timestamp;
diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index 79235ff..5de3081 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -967,6 +967,9 @@
     src_w = sourceCrop.right - sourceCrop.left;
     src_h = sourceCrop.bottom - sourceCrop.top;
 
+    if(layer->transform & HWC_TRANSFORM_ROT_90)
+        swap(src_w, src_h);
+
     if(((src_w > dst_w) || (src_h > dst_h)))
         return true;
 
@@ -982,6 +985,10 @@
     dst_h = displayFrame.bottom - displayFrame.top;
     src_w = sourceCrop.right - sourceCrop.left;
     src_h = sourceCrop.bottom - sourceCrop.top;
+
+    if(layer->transform & HWC_TRANSFORM_ROT_90)
+        swap(src_w, src_h);
+
     if(dst_w && dst_h) {
         float w_scale = ((float)src_w / (float)dst_w);
         float h_scale = ((float)src_h / (float)dst_h);
diff --git a/liblight/lights.c b/liblight/lights.c
index 615ddd8..12af384 100644
--- a/liblight/lights.c
+++ b/liblight/lights.c
@@ -162,7 +162,16 @@
     blue = colorRGB & 0xFF;
 
     if (onMS > 0 && offMS > 0) {
-        blink = 1;
+        /*
+         * if ON time == OFF time
+         *   use blink mode 2
+         * else
+         *   use blink mode 1
+         */
+        if (onMS == offMS)
+            blink = 2;
+        else
+            blink = 1;
     } else {
         blink = 0;
     }