Question about LG 26LG30 26 in. LCD TV

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Invalid format displays on screen

I have a 42 lg plasm screen is black with a invalid format display i do still get sound
I am using my TV as a monitor as well and several times a day the picture crashes to blank screen with "Invalid Format" displayed.
I also still have sound but need to reboot computer to get the picture back.

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  • grunta0 May 22, 2009

    Tried this, didn't work.
    This appears now to be a computer problem rather than a TV error.

    I say this because if I switch the input from RGB to AV1 the picture appears but is lost again when I switch back to RGB.


  • grunta0 May 23, 2009

    Yeah not quite that easy as I have Vista but anyway did what you suggested and changed screen from 1024 x 768 to 1280 x 768.
    This is not really the best resolution for my screen as the top of the icons, on the top row, in desktop are "chopped".
    Also tried adjusting the refresh rate from 60 to 85 hertz but the picture crashed and I got the "Invalid Format" message. The picture resumed after a few seconds.
    Changed refresh rate back as it was flickering.

    Thanks, let's see what happens.


  • grunta0 May 26, 2009

    Changed resolution to 1152x864 and no picture crash for two days.

    Maybe problem solved.
    Thanks !


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  • 57 Answers

Hello try changing the picture ratio...what i mean is try 16.9 widescreen or 4.3 ledder box the tv is tryn to produce a pic bigger or smaller than what you have keep tryn different picture ratio's

Posted on May 20, 2009

  • ragz2richez May 23, 2009

    ok try changing resolution on computer...right click on scren and hit properties and try different resolutions

  • ragz2richez May 26, 2009

    thats good to hear glad i could help ya out!!!

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