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laptop HDMI to tv stopped working

Discussion in 'Windows 7' started by serenityzero, Apr 19, 2014.

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  1. serenityzero

    serenityzero Thread Starter

    Joined:
    May 12, 2009
    Messages:
    11
    Hi,

    I'm sorry, I'm somewhat technologically impaired. I've been connecting my tv to my laptop via HDMI cable for several years and it's always worked fine. Today when I tried, the screens just turned back. My TV stopped saying no signal as if it recognized the computer, and the computer screen went black as if it were switching to the TV, but neither of them actually worked. I tried to go into my display settings to connect to a projector which I have had to select in the past, but it says no additional display was detected. When I tried to tell it to do it anyway, the laptop screen started turning on and off every few seconds so it was black, then back to my desktop, then black again.

    The really wonky part is that when I tried starting up the computer with the HDMI cable already attached, it showed the windows startup and password screens on the TV as if it were working properly--but as soon as it loaded up the desktop it started turning the screen on and off again until I disconnected the HDMI.

    I haven't changed any settings on my computer recently--the only new thing I've installed are some games off Steam. Something crazy's going on with my computer that has never happened before, could someone please help?

    -Shauna

    PS: This image should have the info for my computer please let me know if you need any other information
     

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  2. Oddba11

    Oddba11

    Joined:
    May 12, 2011
    Messages:
    7,099
    First Name:
    Jim
    Verify the screen resolution and refresh rate.

    Aside from that, try manually updating or reinstalling the laptop video drivers. The drivers should be available from the laptop manufacturers website (and are the only recommended drivers which should be used).
     
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