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I have a problem with my second monitor. My primary monitor is connected via VGA->DVI and my second via a DVI both plugged into one DVI port with a dual cable. I have had this setup for over 2 years - working fine.

This morning I wanted to check an other PC so I took out the dual cable and put it into the test PC. After the test I plugged it back in. However, now only my primary (VGA) monitor works, my secondary (DVI) light is flashing until login screen; then tells me “ No signal”. OS is Windows 7.

Monitors are Acer X183H (primary, VGA) and Gateway HX1953L (secondary, DVI).

Would anybody have an idea whats up? Thank you very much.

  • Which OS??????? – Eric F Mar 16 '18 at 18:49
  • Windows, I will also adjust this in the main post - excuse me. – wptmdoorn Mar 16 '18 at 19:07
  • Is the screen detected in display properties? It may not be activated. – Damon Mar 16 '18 at 20:03
  • Yes it is, I actually checked all those things. I can also move different windows to that display if I extend it.. but it just doesnt show – wptmdoorn Mar 16 '18 at 20:37
  • Did you try to swap the cables and check if it works? – batistuta09 Mar 17 '18 at 7:44

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