diff --git a/init.redroid.rc b/init.redroid.rc
index b5214d1..129fee0 100644
--- a/init.redroid.rc
+++ b/init.redroid.rc
@@ -20,8 +20,12 @@ on early-init && property:ro.kernel.redroid.overlay=1
 
 
 on init
+    # lxcfs better
     write /data/.empty 0
-    mount none /data/.empty /proc/vmallocinfo bind # lxcfs?
+    mount none /data/.empty /proc/vmallocinfo bind
+
+    # fix suspend host system?
+    mount none /dev/null /sys/power/state bind
 
 
 on post-fs-data
diff --git a/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml b/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
index fdff1e5..7a5ba9f 100755
--- a/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
+++ b/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -22,5 +22,8 @@
 
     <bool name="def_lockscreen_disabled">true</bool>
 
+    <!-- maximize the timeout to INT_MAX about 500+ hours -->
+    <integer name="def_screen_off_timeout">2147483647</integer>
+
     <bool name="def_package_verifier_enable">false</bool>
 </resources>