nixos docs: more IDs

nixos/doc/manual/configuration/x-windows.xml

@@ -60,7 +60,7 @@
 # systemctl start display-manager.service
 </screen>
  </para>
- <simplesect>
+ <simplesect xml:id="sec-x11-graphics-cards-nvidia">
   <title>NVIDIA Graphics Cards</title>
   <para>
    NVIDIA provides a proprietary driver for its graphics cards that has better
@@ -86,7 +86,7 @@
 </programlisting>
   </para>
  </simplesect>
- <simplesect>
+ <simplesect xml:id="sec-x11--graphics-cards-amd">
   <title>AMD Graphics Cards</title>
   <para>
    AMD provides a proprietary driver for its graphics cards that has better 3D
@@ -106,7 +106,7 @@
 </programlisting>
   </para>
  </simplesect>
- <simplesect>
+ <simplesect xml:id="sec-x11-touchpads">
   <title>Touchpads</title>
   <para>
    Support for Synaptics touchpads (found in many laptops such as the Dell
@@ -123,7 +123,7 @@
    since NixOS 17.09.
   </para>
  </simplesect>
- <simplesect>
+ <simplesect xml:id="sec-x11-gtk-and-qt-themes">
   <title>GTK/Qt themes</title>
   <para>
    GTK themes can be installed either to user profile or system-wide (via

nixos/doc/manual/configuration/xfce.xml

@@ -31,7 +31,7 @@
   (system wide), put them into your
   <xref linkend="opt-environment.systemPackages"/>.
  </para>
- <simplesect>
+ <simplesect xml:id="sec-xfce-thunar-volumes">
   <title>Thunar Volume Support</title>
   <para>
    To enable <emphasis>Thunar</emphasis> volume support, put
@@ -41,7 +41,7 @@
    into your <emphasis>configuration.nix</emphasis>.
   </para>
  </simplesect>
- <simplesect>
+ <simplesect xml:id="sec-xfce-polkit">
   <title>Polkit Authentication Agent</title>
   <para>
    There is no authentication agent automatically installed alongside Xfce. To
@@ -50,7 +50,7 @@
    and login did the trick.
   </para>
  </simplesect>
- <simplesect>
+ <simplesect xml:id="sec-xfce-troubleshooting">
   <title>Troubleshooting</title>
   <para>
    Even after enabling udisks2, volume management might not work. Thunar and/or

nixos/doc/manual/development/option-def.xml

@@ -17,7 +17,7 @@ config = {
   definitions in a <emphasis>property</emphasis> to achieve certain effects:
  </para>
 
- <simplesect>
+ <simplesect xml:id="sec-option-definitions-delaying-conditionals">
   <title>Delaying Conditionals</title>
   <para>
    If a set of option definitions is conditional on the value of another
@@ -59,7 +59,7 @@ config = {
   </para>
  </simplesect>
 
- <simplesect>
+ <simplesect xml:id="sec-option-definitions-setting-priorities">
   <title>Setting Priorities</title>
   <para>
    A module can override the definitions of an option in other modules by
@@ -76,7 +76,7 @@ services.openssh.enable = mkOverride 10 false;
   </para>
  </simplesect>
 
- <simplesect>
+ <simplesect xml:id="sec-option-definitions-merging">
   <title>Merging Configurations</title>
   <para>
    In conjunction with <literal>mkIf</literal>, it is sometimes useful for a

nixos/modules/i18n/input-method/default.xml

@@ -69,7 +69,7 @@ ibus.engines = with pkgs.ibus-engines; [ table table-others ];
   as shown above, and also (after running <literal>nixos-rebuild</literal>) the
   input method must be added from IBus' preference dialog.</para>
 
-<simplesect>
+<simplesect xml:id="module-services-input-methods-troubleshooting">
   <title>Troubleshooting</title>
   <para>If IBus works in some applications but not others, a likely cause of
   this is that IBus is depending on a different version of