External Monitor on X60s

I decided today to test support for external monitors on my Thinkpad X60s. I figured it was a good idea to make sure it worked before trying to deliver a presentation. It turns out I could not use FN+F7 to send the display to an external monitor. However, I did find a document that recommended making the following modification to xorg.conf. It sends display to the LCD and the VGA out simultaneously.

richard@neely:/etc/X11$ diff -u xorg.conf.orig xorg.conf
--- xorg.conf.orig      2007-03-01 10:43:11.000000000 -0500
+++ xorg.conf   2007-03-01 10:37:47.000000000 -0500
@@ -103,6 +103,8 @@
        Identifier      "Intel Corporation Mobile Integrated Graphics Controller"
        Driver          "i810"
        BusID           "PCI:0:2:0"
+Option   "Clone" "yes"
+Option    "MonitorLayout" "CRT,LFP"   
 EndSection
 
 Section "Monitor"

Now when I attach a monitor to the VGA port, the laptop can be seen on it.

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