diff --git a/device.mk b/device.mk
index 22d6529..7d2095b 100644
--- a/device.mk
+++ b/device.mk
@@ -710,6 +710,8 @@ PRODUCT_DEFAULT_PROPERTY_OVERRIDES += debug.sf.earlyGl.sf.duration=16600000
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += debug.sf.earlyGl.app.duration=16600000
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += debug.sf.frame_rate_multiple_threshold=120
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += debug.sf.treat_170m_as_sRGB=1
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += debug.sf.hwc_hotplug_error_via_neg_vsync=1
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += debug.sf.hwc_hdcp_via_neg_vsync=1
 
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += ro.surface_flinger.enable_layer_caching=true
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += ro.surface_flinger.set_idle_timer_ms?=80