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-rw-r--r--doc/guix.texi6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index f8badfb5a9..4e75a5c00e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -21119,6 +21119,12 @@ Configuration of the Xorg graphical server.
@item @code{x-session} (default: @code{(xinitrc)})
Script to run before starting a X session.
+@item @code{xdmcp?} (default: @code{#f})
+When true, enable the X Display Manager Control Protocol (XDMCP). This
+should only be enabled in trusted environments, as the protocol is not
+secure. When enabled, GDM listens for XDMCP queries on the UDP port
+177.
+
@item @code{dbus-daemon} (default: @code{dbus-daemon-wrapper})
File name of the @code{dbus-daemon} executable.