--- a/xorg.rst	Mon Jul 13 08:50:32 2009 +0300
+++ b/xorg.rst	Fri Jul 17 23:57:30 2009 +0300
@@ -23,6 +23,14 @@
 
 Time measure in minute.
 
+To enable this configuration you must set "DPMS" option in "Monitor" section:
+
+  Section "Monitor"
+...
+      Option "DPMS"
+...
+  EndSection
+
 * Set display dimensions.
 
 To see currect settings type:
@@ -44,3 +52,17 @@
   DisplaySize     width height
 ...
 EndSection
+
+**  Overriding EDID Settings for NVidia cards.
+
+If you're using NVIDIA display drivers version 8756 or above and your monitor
+reports an EDID DPI value, you must tell the drivers to ignore this value as
+it takes precedence over all the above configuration options/arguments:
+
+Section "Monitor"
+...
+  DisplaySize     width height
+  Option         "UseEdidDpi"  "false"
+...
+EndSection
+