So I have just bought 2 DELL Ultrasharp U2414H monitors, I have a GTX 1070 and I cannot get the second monitor to appear on windows. Both the monitors work fine, I have changed them to DP 1.2 and Mini DP which is what they use in the monitor settings, tried them both separately with their own DP cable and they work fine. I had the first monitor using a DP cable in DP 1 on the GPU and the second monitor using HDMI and its works fine, but if the second monitor uses DP it wont show up at all, I have also tried plugging it in DP 3 on the GPU and nothing. Iv'e tried different drivers, been in the BIOS and Im not sure what else to do.
Thanks