diff --git a/product_prop.mk b/product_prop.mk
new file mode 100644
index 0000000..1ca87f7
--- /dev/null
+++ b/product_prop.mk
@@ -0,0 +1,3 @@
+# Graphics
+PRODUCT_PRODUCT_PROPERTIES += \
+    debug.sf.latch_unsignaled=1
diff --git a/universal7904-common.mk b/universal7904-common.mk
index e9ffcdb..95a9602 100644
--- a/universal7904-common.mk
+++ b/universal7904-common.mk
@@ -29,3 +29,6 @@ DEVICE_PACKAGE_OVERLAYS += $(LOCAL_PATH)/overlay-lineage
 PRODUCT_COPY_FILES += \
     frameworks/native/data/etc/android.hardware.ethernet.xml:system/etc/permissions/android.hardware.ethernet.xml \
     frameworks/native/data/etc/android.hardware.fingerprint.xml:system/etc/permissions/android.hardware.fingerprint.xml
+
+# System properties
+-include $(LOCAL_PATH)/product_prop.mk
\ No newline at end of file