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Laptop to Factory Nav Screen - VGA Detection Pin

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  • Laptop to Factory Nav Screen - VGA Detection Pin

    I would like to try hooking my laptop directly to my factory nav screen. However, after hooking up the RGB and sync pins, the vga port does not detect that a display is connected (extend desktop button in windows wont work), so I cannot get anything to display.

    I have verified the VGA port is good by trying it with a real monitor. Its only when I try to wire it up in the car, that I'm having issues. So its probably something I forgot to wire in.

    Anyone have experience with this? Is there a pin on the VGA connector that I need to ground so that it detects a display is attached? How does the VGA port know that a screen is attached?

    BTW, I realize the resolution will most probably be poor in comparison to a true VGA screen, but nonetheless I'd still like to try this out.
    -TJ
    Smart Playlists Plugin for RoadRunner
    CarPC - 05 Acura TL Navi (pics soon)
    Retired CarPC - 03 Infiniti Qx4

  • #2
    Take a look at this.
    http://tvtool.info/english/dummy_e.htm
    Or google for dummy VGA.
    2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
    89 Supra Turbo P3 [email protected]/Abit BE6 II, Alpine M-BUS Car2PC.
    Y2K Accord Dell GX150
    RoadRunner is the best FE PERIOD
    EmoRebellion is a SCAMMER

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    • #3
      Thanks, that should help a lot! I only used one of the ground pins, because I thought they were the same. I'll rewire and play around some more with it after work.

      -TJ
      -TJ
      Smart Playlists Plugin for RoadRunner
      CarPC - 05 Acura TL Navi (pics soon)
      Retired CarPC - 03 Infiniti Qx4

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