Just received my U2515H, hooked it up to my computer using the mDP to DP cable provided in the box and immediately got a black screen telling me that there was no signal coming from my computer. I manually selected the input as mDP, so that shouldn't be the issue.
I'm running an Asus Rampage V Extreme mobo so i have a dedicated graphics card: a NVIDIA GeForce 980ti with 2 DP, 2 HDMI, and 2 DVI inputs.
Any suggestions on what might be the cause? I have tried unplugging and restarting both my computer and the monitor with no luck. I have a second U2515H arriving tomorrow, so I'd hate to have the same issue twice.