--- a/xorg.rst	Thu May 31 15:19:46 2012 +0300
+++ b/xorg.rst	Thu May 31 15:22:36 2012 +0300
@@ -57,7 +57,11 @@
 
 To turn off monitor use::
 
-  $ xset dpms force off
+  $ sleep 1; xset dpms force off
+
+See:
+
+ * https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling
 
 Set display dimensions.
 =======================