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Are you using a surge protector?
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I have had the same issues with my work computer, but resolved it by switching from a VGA to a DVI one. Do you have that option?
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Are the monitors and laptop plugged into the same extension lead?
VGA is an analogue signal. The cables are prone to interference if they run parallel to power cables or cross them at angles other than 90 degrees.
pifko
Simba
Emyr
@aggi
Strange computer problem.
I have a laptop with two identical monitors connected. One via HDMI, one via VGA. The VGA monitor flickers, not badly but enough to make it unusable for work. I've swapped monitors, leads, power packs, etc and nothing fixes this.
What does fix it is unplugging the laptop from the mains. This isn't that convenient though. Any other solution for this? Cheers