Question Two identical monitors but one is flickering black ?

[coltostallion]

I have two identical monitors, one connected via HDMI and one connected via VGA. The VGA monitor started flashing to black and back like it was turning off and on randomly but the power light doesn't change. I tried switching the input to DVI but the issue persists. I assume it's not an issue with the PC since it's only affecting the one monitor. The tower only has one HDMI input or I would try running both monitors off HDMI. Any suggestions?

OS = Windows 10

 

[Grobe]

Does the flickering monitor also flicker when that is the only one connected? Are the monitors identical? If yes - have you tried to swap them around? Does the other screen start flickering then?

 

[coltostallion]

Monitors are identical, yes. Haven't tried with it being the only one connected but have tried swapping them and no luck there.

 

[Grobe]

When you swap them, can you tell exact what you did? Did you swap them completely - as both cables and position? And by "no luck" what does that mean exactly ?