Welp, I got my P2415Q in the mail about an hour ago. Set it up, ran through a few games of Battlefront before firing up Premiere Pro - not 20 minutes into use I started getting horizontal lines, glitching, and then it popped to black with the glitched desktop image fading away slowly, lines and all. This is Displayport into a 980 Ti which works fine on other monitors, albeit not 4K.
Tried it with my retina MacBook Pro 15" and same issue with the included mDP to DP cable. Lines, glitching, popping in and out of black, and then finally it'll just go "No DP cable" but the image of the desktop will be faded and glitched in a small portion of the display towards the right side.
Here's a small video of the issue on my MacBook.
And here's a crappy cell phone image of once it decides there's no cable plugged in. This image persists whether I pull the cable out or leave it in.
http://i.imgur.com/dtaeipn.jpg
I got this through Amazon and they're sending me a replacement, but it's gonna be six days before I see it. Brutal. I was planning on using this time to test and see if I wanted to return and get the 27 incher or not.
:edit: So with some further testing, if I power the monitor off and let it sit for a while, coming back to it results in a perfectly working display. After about 5 minutes, the screen flashes in the center, and becomes TWO images on the left side (see this image:
http://i.imgur.com/EC9tfDH.jpg), ONE image on the right side, all melded together by this corruption-y looking horizontal line-filled dark area in the center where it fades together. The timeline of cooled-down unused monitor to distorted half-double image is identical every time.
Switching to MST modes does nothing to alleviate, nor does powering on and off everything. Eventually, the OSD firmware menus become distorted too.
Has anyone seen this issue at all? It's an
A03 model. I haven't been able to find anything digging around the web.