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It will say no signal - Computer Monitors

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  • reyatv Apr 15, 2009

    I only have one I can plug the VGA into. And still no signal.

  • Anonymous Apr 19, 2009

    i just bought a computer but the monitor says no signal at times. I turn it on and after about a hour this the screen will turn black and say no signal. VGA cable is fine. I have tried to unplug it and repluging.I have to turn it off manually everytime this shows up, help?



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I just ran into this same problem. I built a new computer. The old computer was running an nvidia card at 1600x1200. The new machine has a Radion card. The OS recognizes the monitor properly, sets the resolution to 1600x1200 at which time this monitor turns off saying no signal. I plugged in another monitor which worked fine, set the resolution to a lower resolution, and then switched the monitor back to the LG. If I try to up the resolution to 1600x1200, the monitor goes back to no signal status. I don't have an explanation as to why the current video card can't use the same resolution as the previous monitor.

Posted on Sep 20, 2009

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It would be helpful if you had some more detail to this. However if it's saying no signal, and you're sure that that either the VGA cord is securely connected at both ends, then you may want to check the back of your PC to see if there is another video card installed, and try using that one. I've seen this happen thousands of times.

Posted on Mar 06, 2009

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