My U2412M monitor, which I have connected to my dell XPS 17 via a DP to mDP cable has stopped showing the display from the XPS 17 and only goes into power save mode. I have also tried to connect using HDMI to DP and DVI to HDMI. When the DVI to HDMI is connected, the laptop recognizes the monitor but does not show a display. My partner has connected her own laptop and it works fine with VGA. I purchased my monitor via Amazon.co.uk and just wondering what I might be able to do as have only had it for about 8 months.
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