Why doesn’t my monitor receive a signal from my PC?
Question by jonathan hileman /

When I turn my computer on the fans spin but nothing ever comes up on the monitor. I know the monitor is working. So why isn’t it receiving a signal from my PC?

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Answers (6)
  • Anonymous

    remove your graphical card and see if this will allow monitor to use the onboard graphical card. Then plug the graphical card again.

  • Anonymous

    If your PC has an integrated video graphics card as well (more than one video card on a machine), sometimes it happens that people plug their monitor cable into wrong video card.
    Check it out, it happened to me once, I was like “damn, I just bought this PC, but the monitor doesnt work!” and then realized that I plugged into the integrated video card.

  • Karkala Nayak

    hello,
    REMOVE YOUR POWER CORD AND HOLD THE ON BUTTON FOR LIKE 30second TO A MINUTE AND THEN CONNECT IT BACK AND TURN IT ON 

    If that doesn’t solve the issue check these websites
    http://www.computerhope.com/issues/ch000241.htm 
    http://pcsupport.about.com/od/findbysymptom/ht/nothingonscreen.htm 
    http://pcsupport.about.com/od/findbysymptom/ht/testmonitor.htm 

    hope it helped

  • Jay.0

    Check if the connection between monitor and CPU is not loose.
    I know that’s the first thing anyone will check, still I think I should mention it.

  • FIDELIS

    Hello, Is this a new build?  Has the monitor worked with this computer before?  What kind of connection are you using?  Is this an integrated or discrete graphics card?  If your monitor has different connections like DVI and VGA, have you tried using a different connection? 

    If this is a new build, and everything else works but you do not get any signal in  monitor, a few of the pins in the processor might be bent.  If it is a discrete card, make sure that it is sitting properly in slot.  Also make sure to try a different cable and at same time, make sure that cables are connected properly. If it is a discreet card and it requires a connector to power supply, make sure your power supply has it available and it is connected. It could be a 4, 6 or 8 pin. Also make sure that power supply has enough juice to power up your system.

  • Mike

    Is the graphics card working using another monitor or using the card in another system? Maybe it requires additional power connectors which are not (properly) connected or your power supply does not supply enough watt.

    Also is your computer actually booting up? 
    You could try resetting the BIOS/EFI to default [as described in your motherboards or computers manual].