--- a/hardware.rst	Sat Sep 24 11:48:36 2016 +0300
+++ b/hardware.rst	Sun Sep 25 17:16:40 2016 +0300
@@ -148,7 +148,8 @@
   ``xrandr``
                 Supported display resolutions.
   ``xdpyinfo``
-    Utility for displaying information about an X server.
+    Utility for displaying information about an X server, monitor DPI,
+    resolutions, etc.
   ``xvinfo``
     Print out X-Video extension adaptor information.
   ``xdriinfo``