hi all ,
I have this display too ,and have been following this thread everyday day ,
Now i do have Nvidia cards and i'm waiting upon the release of the the R390X cards to swap over to AMD so im able to use the freesync feature .
However i do keep experiencing the screen turning black / or off then back on again for a second , and once it did not recover and i had to use a hdmi connection to get it running again then swap back to DP.
I'm running with displayPort @ 144 hz , I've uninstalled my drivers and reinstalled them again using DDU , and also put a clean install of win 8.1.64bit ,
but it still happened a twice or three times last night .
now for some strange reason the screen has only done it once today and that was just after first power on today and so far today no other incidents from what i've seen.
I do hope that there isn't a problem with the display. i will just see how things go .