Question about Dell Latitude C640 Notebook
You need to activate the output. Left click somewhere on the desktop screen to bring up the display menu and then click on <properties> at the bottom and then click on settings. You should see the 2nd display. Enable it and duplicate the desktop (not extend) to the output. That is the generic procedure- yours may be a little different.
Let me know if that doesn't do it.
Posted on Nov 18, 2009
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Posted on Jan 02, 2017
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