diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 65ffc16..043809c 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -100,6 +100,10 @@
     <!-- Default screen brightness for VR setting. Default value: 0x56 => 86. -->
     <integer name="config_screenBrightnessForVrSettingDefault">86</integer>
 
+    <!-- Minimum screen brightness setting allowed by the power manager.
+         The user is forbidden from setting the brightness below this level. -->
+    <integer name="config_screenBrightnessSettingMinimum">4</integer>
+
     <!-- Values for USB port setting. in format of bootmode:current function:new function -->
     <string-array translatable="false" name="config_oemUsbModeOverride">
         <item>"usbradio:adb:diag,serial_cdev,rmnet_gsi,adb:diag,serial_cdev,rmnet_gsi"</item>