Question about Dell Latitude C640 Notebook

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Dell laptop c640 s-video port usage

I have hooked up a s-video cable from the computer to a regular TV and the c640 delivers no video to the TV, the s-video port is not working on my Dell c640. I have upgraded the computer to XP pro from win2000 and in the device driver under ports I do not see it listed there. Only Com1 & LTP1 are listed. Do I need a driver for this s-video port to work? What can I do to make it work?

Thanks in advance for any info

Noel Roberts

noel7vinnie-scwaz@peoplepc.com

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  • sorcer Nov 23, 2008

    Same problem with Dell laptop, but the Fn key combo does not work. Seems liike it used to...

  • corigrieb Dec 20, 2008

    Same problem on my notebook


  • Anonymous Apr 08, 2009

    My Dell Lattitude C640 laptop has the same problem.  Fn+F8 toggles this function, by the way.

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Normally you have to use Fn(function key) on your keyboard + F4 key (F4 or maybe some other key you have to see and icon on your F4,F10 key..it should look like a a monitor icon) try it.
Press Fn first and hold it and press F4....
The first time it should output only to your S-video,second pressing it should output both s-video and your monitor.
goodluck,takecare.

Posted on May 03, 2008

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Posted on Jan 02, 2017

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