One of two identical monitors won't detect - but was working today!

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15 Jan 2004
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Doncaster
Hi

I've been using two Iiyama G-MASTER GB3466WQSU-B1 34" UWQHD as a dual display setup since August 21. Was all going fine until this afternoon.

I set my computer to sleep mode, but then a few seconds later realised I needed something off it, so quickly activated it again. Only one monitor turned on. Literally nothing else changed in those few seconds. And I can't get the monitor back.

It turns on and displays the white Iiyama test screen, which quickly disappears and then says no signal detected and it goes from blue light on to red light standby.

I've tried reinstalling drivers, playing with power settings, playing with display configuration, nothing is working. Windows no longer sees one of the monitors. When I go in device manager or display settings it only sees 1 monitor there.

This has been driving me mad for a couple of hours. Please help!
 
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