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-rw-r--r--doc/guix.texi6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 3fbe963967..d91f7a8fc8 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -3954,13 +3954,17 @@ password.  When @var{auto-login?} is true, log in automatically as
 @end deffn
 
 @deffn {Monadic Procedure} xorg-start-command [#:guile] @
-  [#:drivers '()] [#:xorg-server @var{xorg-server}]
+  [#:drivers '()] [#:resolutions '()] [#:xorg-server @var{xorg-server}]
 Return a derivation that builds a @var{guile} script to start the X server
 from @var{xorg-server}.  Usually the X server is started by a login manager.
 
 @var{drivers} must be either the empty list, in which case Xorg chooses a
 graphics driver automatically, or a list of driver names that will be tried in
 this order---e.g., @code{("modesetting" "vesa")}.
+
+Likewise, when @var{resolutions} is the empty list, Xorg chooses an
+appropriate screen resolution; otherwise, it must be a list of
+resolutions---e.g., @code{((1024 768) (640 480))}.
 @end deffn
 
 @node Setuid Programs