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    How does my BIOS know the screen res?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by woosydiver, Jun 30, 2009.

  1. woosydiver

    woosydiver Newbie

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    I'm intrigued to understand how the BIOS and hence Windows "knows" the native resolution of the LCD screen which is part of the laptop. There's a number of threads here advising that a different resolution screen can simply be installed in a laptop [with some minor considerations], but where does the resolution info come from?

    For example, the BIOS on my Dell D520 shows 1400x1050, where does this info come from?

    Please someone explain, I hate it when I have an unanswered question, yet I have searched here and Google.

    Thanks in advance
     
    woosydiver, Jun 30, 2009
    #1
  2. naton

    naton Notebook Virtuoso

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    the info if I am not wrong comes from the board located behind te LCD (usually in the top part of the LCD)
     
    naton, Jun 30, 2009
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