I'm not sure if this is also a place to ask hardware related questions, but I'm having scanline problems with my monitor when my laptop is plugged in the power socket. What can I do to make that problem go away?
2 Answers
If you have a toroid kicking around (motherboards often come with them), you can try wrapping a portion of the video cable through it to see if that makes any difference. I take it that this is a CRT monitor?
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What do the lines look like? How many are there? Are they horizontal? Do they move?– boot13Jul 28, 2010 at 16:42
The best way to make it go away is going to be to use a DVI cable instead, but that may not be a possible solution.
Alternatively, try swapping your VGA cable to a higher quality cable, and make sure that your outlets are properly grounded electrically. There could also be a grounding problem inside the laptop or the monitor itself, but that's not something that will be user-servicable.