My new Seiki Pro 40 doesn't work...help!
I bought a nMP with a D500 graphics card. My main display is the LG UltraWide which works flawlessly. My Seiki Pro (SM40UNP) newly purchased, keeps flashing the same messages (No Video Input) and something about sleep. From the Seiki, I have a Display Port cable from Cable Matters. The Display Port cable is connected to a Mini Display Port adapter, which is connected to the nMP.
I should mention that when I tried connecting my MacBook Air to the Seiki, it works using the same Cable Matters cable. I also tried connecting the nMP to the Seiki using a HDMI cable and that worked and I can get 3480 x 2160, but at 30Hz. I need 60Hz which is where the Display Port cable comes it. The Seiki has DP v1.2.
In the System Pref's, when I bring up Displays, (pictured below), I can "Gather Windows, but the Seiki is still black. For nearly 4 hours, I've tried just about everything.
Does anyone have a clue as to why the Seiki isn't working? The Sourse on the Seiki is set to Display Port 1, which is where the cable is connected. I'm running 10.10.3.
Any info, suggestions, etc...would be appreciated.
Thanks!