Index: en_US.ISO8859-1/books/handbook/x11/chapter.xml
===================================================================
--- en_US.ISO8859-1/books/handbook/x11/chapter.xml	(revision 52414)
+++ en_US.ISO8859-1/books/handbook/x11/chapter.xml	(working copy)
@@ -413,7 +413,42 @@
     <sect2 xml:id="x-config-video-cards">
       <title>Video Cards</title>
 
+      <para>Because of changes made in recent versions of &os;, it
+	is now possible to use graphics drivers provided by the Ports
+	framework or as packages.  As such, users can use one of the
+	following drivers available from
+	<package>graphics/drm-kmod</package>.</para>
+
       <variablelist>
+	<varlistentry xml:id="x-config-video-cards-ports">
+	  <term>&i915kms;</term>
+	  <term>&radeonkms;</term>
+	  <term>&amdgpu;</term>
+
+	  <listitem>
+	    <para>2D and 3D acceleration is supported on most
+	      &i915kms; graphics cards provided by Intel.</para>
+
+	    <para>Driver name: <literal>i915kms</literal></para>
+
+	    <para>2D and 3D acceleration is supported on most older
+	      &radeonkms; graphics cards provided by AMD.</para>
+
+	    <para>Driver name: <literal>radeonkms</literal></para>
+
+	    <para>2D and 3D acceleration is supported on most newer
+	      &amdgpu; graphics cards provided by AMD.</para>
+
+	    <para>Driver name: <literal>amdgpu</literal></para>
+
+	    <para>For reference, please see <link
+		xlink:href="https://en.wikipedia.org/wiki/List_of_Intel_graphics_processing_units"/>
+	      or <link
+		xlink:href="https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units"/>
+	      for a list of supported GPUs.</para>
+	  </listitem>
+	</varlistentry>
+
 	<varlistentry xml:id="x-config-video-cards-intel">
 	  <term>&intel;</term>
 
Index: share/xml/freebsd.dtd
===================================================================
--- share/xml/freebsd.dtd	(revision 52414)
+++ share/xml/freebsd.dtd	(working copy)
@@ -117,3 +117,7 @@
 <!ENTITY prompt.root		"<prompt>#</prompt>">
 <!ENTITY prompt.user		"<prompt>%</prompt>">
 
+<!-- Entities used by KMS drivers -->
+<!ENTITY amdgpu 'AMD KMS driver'>
+<!ENTITY i915kms 'Intel KMS driver'>
+<!ENTITY radeonkms 'Radeon KMS driver'>