diff --git a/private/compat/29.0/29.0.ignore.cil b/private/compat/29.0/29.0.ignore.cil
index 1d4216c..4a781ce 100644
--- a/private/compat/29.0/29.0.ignore.cil
+++ b/private/compat/29.0/29.0.ignore.cil
@@ -99,6 +99,7 @@
     soundtrigger_middleware_service
     staged_install_file
     storage_config_prop
+    surfaceflinger_display_prop
     sysfs_dm_verity
     system_adbd_prop
     system_config_service
diff --git a/private/property.te b/private/property.te
index 1aa4ddf..c5a4f83 100644
--- a/private/property.te
+++ b/private/property.te
@@ -406,3 +406,12 @@
 } {
   graphics_config_prop
 }:property_service set;
+
+neverallow {
+  -init
+  -vendor_init
+  -system_app
+} {
+  surfaceflinger_display_prop
+}:property_service set;
+
diff --git a/private/property_contexts b/private/property_contexts
index 2489c13..bab2a1a 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -858,3 +858,7 @@
 # Graphics related properties
 graphics.gpu.profiler.support          u:object_r:graphics_config_prop:s0 exact bool
 graphics.gpu.profiler.vulkan_layer_apk u:object_r:graphics_config_prop:s0 exact string
+
+# vendor-init-settable
+graphics.display.kernel_idle_timer.enabled u:object_r:surfaceflinger_display_prop:s0 exact bool
+
diff --git a/private/surfaceflinger.te b/private/surfaceflinger.te
index 973350e..a160246 100644
--- a/private/surfaceflinger.te
+++ b/private/surfaceflinger.te
@@ -57,6 +57,9 @@
 set_prop(surfaceflinger, exported3_system_prop)
 set_prop(surfaceflinger, ctl_bootanim_prop)
 
+# Get properties
+get_prop(surfaceflinger, surfaceflinger_display_prop)
+
 # Use open files supplied by an app.
 allow surfaceflinger appdomain:fd use;
 allow surfaceflinger { app_data_file privapp_data_file }:file { read write };
diff --git a/private/system_app.te b/private/system_app.te
index e160ff4..18d4a87 100644
--- a/private/system_app.te
+++ b/private/system_app.te
@@ -57,6 +57,8 @@
 auditallow system_app usb_prop:property_service set;
 # Allow Settings to enable Dynamic System Update
 set_prop(system_app, dynamic_system_prop)
+# Allow Settings to config display kernel idle timer
+set_prop(system_app, surfaceflinger_display_prop)
 
 # ctl interface
 set_prop(system_app, ctl_default_prop)