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Hi can anyone help I have a desktop pc running two monitors and have done so for around the last 10 years suddenly one has gone black power to it but saying no signal, I have tried different cables and stress tested the graphics card all seem on I have four ports on the graphics card. Left screen in port 1 and screen on front of me in port 2 that’s the one gone no signal , I put the first screen into port 2 ti try and it works but the second screen in port 2 stays no signal , even in device manager it’s showing 1 screen only when always had 2, I clicked show hidden so a screen comes up but says not connected when it is, I don’t get it I even bought a new screen put it into each slot In graphic card and that’s saying no signal I have always had two screens I don’t get why one has just stopped working please can anyone help thanks