diff --git a/system.prop b/system.prop
index e3b0c64f..be4a1c1d 100755
--- a/system.prop
+++ b/system.prop
@@ -23,6 +23,7 @@ DEVICE_PROVISIONED=1
 ro.telephony.default_network=22,20
 
 debug.sf.hw=1
+debug.sf.latch_unsignaled=1
 debug.gralloc.enable_fb_ubwc=1
 dalvik.vm.heapsize=36m
 dev.pm.dyn_samplingrate=1