Chris-M,

Please stay on them with this issue.  It is a major issue and ruins what should be a great experience. The UP3214Q should be the ultimate user experience and it is nothing short of a nightmare.

I am having the same issue - verbatim
UP3214q

(4)GTX Titans
192Gb ram
dual cpu motherboard (evga sr-x)
12 ssd RAID
windows 7 ultimate 64
driver 331 nvidia

HELP!!!!

The Nvidia 334.89 WHQL drivers have been released.

In the release notes there is no mention of the UP3214Q, 4k, DisplayPort 1.2, 3840x2160 or any issues relating to those topics either in the known issues or list of fixes.

@DELL-Chris M We could do with an estimated fix time. Will these issues be resolved in drivers or will a new revision of the hardware need to be released?

We could do with an estimated fix time. Will these issues be resolved in drivers or will a new revision of the hardware need to be released?
* No clue. No time table has been provided nor details.

Can Dell provide a firmware update for the monitor, or is it a paperweight?

So using NVIDIA 331.93 beta works for me. Anyone had luck with getting it to work with ATi/AMD ?

I am using 331.93 beta drivers. No half screen issues, no frequent pause resume issues. Though the monitor occasionally gets locked into powersave mode if the computer is power cycled, but the monitor is not (only happened once during the last week). 332.21 brought the issues back. I had to uninstall geforce experience, as it might have magically updated the driver (not sure how it happened, but after a reboot I had 332.21 instead of 331.93).

I am not using Dell's displaymanager software, only the drivers.

Asus P9X79E WS, 2x EVGA Titan SC SLI, Windows 8.1 Pro (build 9600)  

Can Dell provide a firmware update for the monitor, or is it a paperweight?
* We only did this for one monitor model in my 16 years at Dell. I doubt it. If a firmware update were to occur, it would only be done in our service centers.

First, I do appreciate this forum and tech support help.

In response to last posting:

so... paper-weight?

the 331.93 and the 334.89 only seem to work for a few minutes after shutdown.

Here is the most accurate observation I can give you:

1. After the monitor "cools down" a cold boot gives a half screen 

2. Switching resolutions out of an app or game, may cause a half screen, a black screen, and monitor goes into power save mode

3. I'm on my second monitor, built november 2013 (again), revision a00, issue persist. I asked dell for later firmware and build, but I received an exact clone of the prior and issue continues.

4. While I had both in my possession: to make sure its not the video cards. Swapped monitors after a power off, and the problem of half screen was there. If you recycle cold boot within 10 minutes the issue usually doesn't occur.  Let it sit few hours or overnight and the problem does occur

So in my world this is reproducible:

1. Cold monitor = half screen

2. Freshly used monitor, reboot, or power cycle, issue of half screen does not seem to occur.

3. Changing in and out of game causes issues - note on nvidia driver 327 - game switching seemed to work fine, but half screen issue on cold boot remained.

before anyone dissects it further, today I have two monitors in my possession. I plugged one into my gtx690 build and it displayed the same behavior that the other monitor did on the titan gtx build.

I tried both monitors on both machines and got the same behavior

I've tested with three drivers 327, 332, 334 all official, and behavior of half screen on cold boot persited.

Further, the asus pq321q, does not display the cold boot issue, and that monitor is based on the same screen hardware as the dell

THX

Jay

I am typing this in front of the UP3214Q. Half screen issue does not happen with 331.93 BETA. I spend the entire weekend playing various games, and apart from that the monitor does not support scaling in MST mode (so i switched to native res) . Monitor was on suspend entire day, booted up just fine.  COD4, Homeworld2, Dawn of War, Supreme Commander, plus did some coding with Visual Studio 2013. Actually, since saturday this is on my main PC. Ordered the monitor on the 30th of December from Overclockers UK.

So you're running  DP 1.1,  no MST at 30hz.    That mode has never been a problem.    We're talking about  DP 1.2 MST, 60hz.      

What is the model and bios version of your video card?

So you're running  DP 1.1,  no MST at 30hz.    That mode has never been a problem.    We're talking about  DP 1.2 MST, 60hz.

I am using DP 1.2 using the provided DP to mini DP cable. (and in 60hz mode)

EVGA Titan Signature Editions, Bios version 80.10.2c.00.90

I am typing this in front of the UP3214Q.

Half screen issue does not happen with 331.93 BETA. I spend the entire weekend playing various games, and apart from that the monitor does not support scaling in MST mode (so i switched to native res) . Monitor was on suspend entire day, booted up just fine. 

COD4, Homeworld2, Dawn of War, Supreme Commander, plus did some coding with Visual Studio 2013. Actually, since saturday this is on my main PC. Ordered the monitor on the 30th of December from Overclockers UK.

What seems to be wrong, hower can be reproduced the following steps :

Boot up from a complete cold boot (PSU standby must be OFF - disconnect mains if you dont have a switch)

Works fine using 331.93 Beta.

Turn off the monitor using the button (the on on the front)

Wait a sec

Turn the monitor back on

Nothing happens, no image, monitor goes to standby saying there is no image. If the displayport cable is disconnected, its says it is disconnected, so this is something different.

Shut down the PC (normal shutdown using a single press on the case button)

Turn back the PC on - no image at all. PC is on, if you turn on or off the monitor, i can even hear the detected sound effect. Connecting another monitor confirms that the PC is on, but also brings the UP3214Q alive, too. Sometimes with half-screen (always on the right for me)

What fixes is it to turn off standby power on the PC. Until that happens the monitor will behave as others listed. Even if the UP3214Q remains under power.  Just letting windows to suspend the monitor does not seem to trigger this issue.

Configuration

Asus P9X79E-WS + I7 4960X using bios 1301

2x EVGA Titan Signature edition (SLI)

(Dont see how the it could be important, but i also have an Areca 1882IX-16 raid card and a Creative ZXR)

Further, the asus pq321q, does not display the cold boot issue, and that monitor is based on the same screen hardware as the dell

This is not true. Different backlight and the scaling is different. The panel is the same, the hardware is not. But this is probably best answered from Dell. Considering that 4K is hardly more than experimental tech, it might be possible that these differences are just highlighting an issue in the NVIDIA driver or hardware. Never than 331.93 beta drivers have all the issues people mentioned (for me, the half screen happens 100% after boot, until i connect another display via DVI  while the UP3214Q still connected - that seem to fix the issue).

I welcome more regular communication from Dell, this issue is frighteningly neglected.