diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 4ca9acb..d13b188 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3443,7 +3443,8 @@
             ALOGW("Couldn't set SCHED_OTHER on display off");
         }
 
-        if (type == DisplayDevice::DISPLAY_PRIMARY) {
+        if (type == DisplayDevice::DISPLAY_PRIMARY &&
+            currentMode != HWC_POWER_MODE_DOZE_SUSPEND) {
             disableHardwareVsync(true); // also cancels any in-progress resync
 
             // FIXME: eventthread only knows about the main display right now
@@ -3457,7 +3458,8 @@
                mode == HWC_POWER_MODE_NORMAL) {
         // Update display while dozing
         getHwComposer().setPowerMode(type, mode);
-        if (type == DisplayDevice::DISPLAY_PRIMARY) {
+        if (type == DisplayDevice::DISPLAY_PRIMARY &&
+            currentMode == HWC_POWER_MODE_DOZE_SUSPEND) {
             // FIXME: eventthread only knows about the main display right now
             mEventThread->onScreenAcquired();
             resyncToHardwareVsync(true);
diff --git a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
index 714c23d..ccadd44 100644
--- a/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
+++ b/services/surfaceflinger/SurfaceFlinger_hwc1.cpp
@@ -2948,7 +2948,8 @@
             ALOGW("Couldn't set SCHED_OTHER on display off");
         }
 
-        if (type == DisplayDevice::DISPLAY_PRIMARY) {
+        if (type == DisplayDevice::DISPLAY_PRIMARY &&
+            currentMode != HWC_POWER_MODE_DOZE_SUSPEND) {
             disableHardwareVsync(true); // also cancels any in-progress resync
 
             // FIXME: eventthread only knows about the main display right now
@@ -2962,7 +2963,8 @@
                mode == HWC_POWER_MODE_NORMAL) {
         // Update display while dozing
         getHwComposer().setPowerMode(type, mode);
-        if (type == DisplayDevice::DISPLAY_PRIMARY) {
+        if (type == DisplayDevice::DISPLAY_PRIMARY &&
+            currentMode == HWC_POWER_MODE_DOZE_SUSPEND) {
             // FIXME: eventthread only knows about the main display right now
             mEventThread->onScreenAcquired();
             resyncToHardwareVsync(true);