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I'm hoping you can help me.

I got a new Lenovo Thinkpad T430 for work. I use an external monitor, attached via vga cord, and I'm having a problem: I get little horizontal lines on the monitor. It's most noticeable where there is blank white space. It's almost the same effect at looking out a window and seeing a faint steady rain falling straight down (but on the monitor, the effect is horizontal.

I've gotten the same effect on two different monitors, so I don't think it is an external monitor issue. I've also tried solving for the ground loop issue by plugging everything in to an adapter with only two prongs, or running the laptop on battery. Also tried moving all the different wires away from each other.

Different refresh rates and different resolutions also make no difference.

What could be the issue? Is there a problem with my laptop's video card? I updated the drivers on that, also.

I am at wits end! I read all day on this thing and I'm going cross-eyed! I only have the vga input and USBs.

Thanks so much for your help.

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2 Answers 2

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Cables

  • Try to replace the VGA cable

If your get the same in your laptop screen then =>

  • Its the graphic card its loose open your laptop find the graphic chip and heat it up with a heat gun put a bit preacher on it its a temporary fix..

  • Link: Example

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we deployed these at work, every single one has the issue you describe. get a DP++ to DVI cable (or whatever your monitor supports). the plug for this is right next to VGA port on the left side of your laptop. this should fix your issue.

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