cock-o-nut

I really want this monitor. Does anyone have a clue when this will be released to public? I know it will be released Q4 2016 but that's all.

Cmos is cleared and that didnt help  its not the gfx cards thats the issue.. 
Usb 3 ports are connected with the usb cable extention  
 
But i got it working some strange way.. I tried to run the screen on hdmi. And when i had the screen display on hdmi i put the dp cable inn and tried to switch between dp and hdmi and then dp came up as a second screen somehow. Removed the hdmi and now running only dp !
Think this is weird.. but works

I have the exact same monitor as in the picture shown (LG 34UM95) and i can atleast for this display it dose not work over dp. you have to connect a usb3 uplink cable

DisplayPort specifies up to four lanes of display data but also an auxiliary data lane that can be used for anything, including USB or ethernet.
 
AFAIK the DisplayPort 1.2 aux lane only has enough bandwidth to accomodate USB 2.0, so any USB 3.0 hub would need to connect through a dedicated cable. As you've noticed though, in practice the aux lane is rarely used for anything beyond basic management commands for the display and such. Special functions like ethernet or USB would need support from the graphics card and drivers in order to route data through the GPU's outputs. So, if it were used it would most likely be found on laptops or tablets. But, there have been developments since the DisplayPort specification was designed, and with the introduction of USB Type-C with DisplayPort Alt Mode, the DisplayPort aux channel feature is effectively obsolete and I doubt it will ever see a move from the industry to implement it. Instead, we will see the opposite, DisplayPort carried through USB ports