commit 609d5b44974e73a994871a14a7f370190633c950
Author: Bryce Harrington <bryce@canonical.com>
Date:   Fri Feb 8 12:34:48 2013 -0800

    xfree86:  Man page shouldn't say Device is mandatory anymore
    
    man xorg.conf states that the 'Device' identifier is required in the
    'Screen' section, yet current xserver defaults properly and boots up
    fine without it.
    
    Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=20742
    Signed-off-by: Bryce Harrington <bryce@canonical.com>

diff --git a/hw/xfree86/man/xorg.conf.man b/hw/xfree86/man/xorg.conf.man
index 5d92bbe..9361ce9 100644
--- a/hw/xfree86/man/xorg.conf.man
+++ b/hw/xfree86/man/xorg.conf.man
@@ -1821,9 +1821,7 @@ sections have the following format:
 .PP
 The
 .B Identifier
-and
-.B Device
-entries are mandatory.
+entry is mandatory.
 All others are optional.
 .PP
 The
@@ -1841,11 +1839,10 @@ The entries available
 for this section are:
 .TP 7
 .BI "Device  \*q" device\-id \*q
-This mandatory entry specifies the
+This entry specifies the
 .B Device
-section to be used for this screen.
-This is what ties a specific graphics card to a screen.
-The
+section to be used for this screen.  When multiple graphics cards are
+present, this is what ties a specific card to a screen.  The
 .I device\-id
 must match the
 .B Identifier