UP3214Q/UP2414Q - 1/2 screen issue and/or No picture after powering off, then on

Here is a scary bit of information:

On the Nvidia developer forums there is a post from one of the nvidia driver developers:

https://devtalk.nvidia.com/default/topic/681356/linux/can-t-enable-60hz-with-display-dell-up2414q-/post/4111931/#4111931

Which he links to this entry "How do we want to deal with 4k tiled displays?" 16th Jan 2014

http://marc.info/?l=freedesktop-xorg-devel&m=138989953919169&w=2

Option 4 is what is a bit scary

"
4. Do nothing and hope the problem goes away. Hopefully, the situation with current 4k monitors is temporary and we'll start seeing single-tile 4k displays soon, fixing the problem "forever". Until we get 8k tiled displays.

"

This may be one developers thoughts, but it seems this technology is not ready for reliable usage yet!

It seems after switching the monitor mode back, so that it only do 30hz makes it stable. (Disable DP 1.2 mode).

Seems like the monitor and nvidia drivers combination is not ready for DP 1.2

UPDATE:

I have gone through support and replaced the monitor. I was running it at 30hz and now decided to switch it to DP 1.2 and run at 60hz again,

It has been stable for 2 days now and is looking promising considering the old monitor would crash my card and system after a couple hours. Looks like it is now stable after getting a replacement monitor. Will see how it goes in the long run. fingers crossed.

UPDATE: I have gone through support and replaced the monitor. I was running it at 30hz and now decided to switch it to DP 1.2 and run at 60hz again, It has been stable for 2 days now and is looking promising considering the old monitor would crash my card and system after a couple hours. Looks like it is now stable after getting a replacement monitor. Will see how it goes in the long run. fingers crossed.

What is the manufacturing date of and version number of your replacement monitor?     

Thanks for reporting to the forum.  

Ok so it's not resolved,

The monitor eventually decided it was not detected again, adjusting anything monitor related causes my system to crash restart and blue screen. For a high end workstation that is built for reliability this is a bloody travesty. was in the middle of a 2 TB backup  to a RAID device that can be interrupted. Switching back to 30hz. Hugely disappointed in DELL and Nvidia. Their sales and support  . I should have bought a Mac (maybe its just as bad) . Don't give any money to these companies you're not prepared to burn in a fire. Or maybe I'll just give up on technology and move out to the country. Seriously this is a joke.

/rage quit

I

adjusting anything monitor related causes my system to crash restart and blue screen

Interesting to hear that that is happening to someone else other than me (crashes, that is). Have you tried what I did? Setting the monitor up on its own power strip and using that to turn it on and off, that is? I also disabled the auto-sleep setting under power options in windows. It has helped a great deal. I'm guessing that when the monitor comes back from sleep/soft-off mode it interacts with the computer via the displayport connection differently than when it's first "cold booting" when you literally cut the power to the screen.

I do think the fault is with Nvidia, though. There's nothing that the monitor itself could do, even if it tried, to cause the computer to crash all by itself. Since it's plugged into the graphics card, a system crash like that is entirely Nvidia's fault. At this point, the only thing I'm really blaming Dell for in my own case is the graphics scaler not working in 60hz mode.

Same issue with 290Xs and Titans. 

I don't blame Dell, but so far the only support i got is to use NVIDIA 331.93 drivers. Superficial test seem to solve the half screen issues, but there are still problems with pause/resume (Disabling display sleep with their display software IS NOT A FIX !). In this product range, support is everything, especially with an early hardware like this. And their silence is: this issue is very likely a design flaw. (Not to mention if the monitor could automatically switch between MST and SST it would work magnificently). The Thames flooding in the area made our life a little difficult, but as soon as the roads are usable i will return the display for a refund as this "not as advertised", and if have to do that i will very likely stay away from DELL monitors in the future. Just in case.

I would say most of the blame lies with Dell. They bundle the Nvidia technology into their workstations and combine marketing. To release a product that uses a split screen and not a standard single panel which the typical video hardware is rigorously evolved and developed to use (and is the expected behaviour, not niche mosaic multipanel issues). To have minimal testing of the monitor, off and on tens of times at one single setting (30hz) is not rigorous enough when they pair these products into valuable top line packages. It is bad internal governance and my suspect is it is cost cutting that results in immature product release and poor quality control. They do not value or appreciate the risk to the customer, just to save resources and not do thorough testing. To expect customers to be their test teams is just greedy. Who is the product manager? Did he sign off on testing before release? Was he congratulated on the release of this new product and how he saved the company money by reducing testing phase by 98%? I want to speak to this guy (or woman). Dell monitors have typically been pretty good quality product, but now likely just another sign of corporate cost cutting, either that or a tremendous mess up.

Having the same issue here with respect to blue screens on soft-on/off, and resuming from monitor standby. At this point I've simply disabled monitor standby (NOT a desirable nor long-term solution) since my workstation is always on anyway.

What I still have no workaround for however is switching to fullscreen mode for gaming. Upon mode switching there's a good chance the monitor won't come back (monitor goes to standby) and I'll have to hard reboot my machine via the reset button. Simply unacceptable.

[quote user="Kwuest"]adjusting anything monitor related causes my system to crash restart and blue screen

Interesting to hear that that is happening to someone else other than me (crashes, that is). Have you tried what I did? Setting the monitor up on its own power strip and using that to turn it on and off, that is? I also disabled the auto-sleep setting under power options in windows. It has helped a great deal. I'm guessing that when the monitor comes back from sleep/soft-off mode it interacts with the computer via the displayport connection differently than when it's first "cold booting" when you literally cut the power to the screen.

I do think the fault is with Nvidia, though. There's nothing that the monitor itself could do, even if it tried, to cause the computer to crash all by itself. Since it's plugged into the graphics card, a system crash like that is entirely Nvidia's fault. At this point, the only thing I'm really blaming Dell for in my own case is the graphics scaler not working in 60hz mode.

[/quote]

At this point given the fact we don't seem to be getting much traction through Dell, I've compiled and cross-posted some findings thus far on the NVIDIA/GeForce forums. I highly recommend since replacement units have not solved the majority of issues observed that we take up the issue there and push for deeper investigation into the matter. If you have a moment, please weigh in with your own issues to gain attention from NVIDIA.

https://forums.geforce.com/default/topic/688503/geforce-drivers/dell-up3214q-w-dp-1-2-mst-bsods-blank-half-screens/

The team is investigating this. All of your data is sent to them as you post it. But, being upset is not justification for breaking our Forum rules. I do not want see anymore profanity or legalistic accusations out here. If I do, that will mean you do not want to participate on this Forum.

I'm running three AMD R9 290x Graphics cards and the initial setup took me 2.5hr and I was frustrated but finally worked it out and have no issues now. I turn the computer on I see the post, bios, log in and it also wakes up from sleep with no issues. I can honestly say I'm happy now!

But I've noticed the people with issues have NVIDIA graphics cards. Nvidia is only new to MST and dual screen surround etc. 

I'm running three AMD R9 290x Graphics cards

Thanks for the feedback. That's great news.

Can you change resolutions when running in DisplayPort 1.2 / 60hz / MST mode? I'm still not 100% whether that is a problem with my nvidia card or just the monitor itself. I tried forcing the nvidia drivers to do **software** resolution scaling in MST mode, but I couldn't seem to get it to work.

I haven't really messed with scaling other than in games. I was at the start and getting issues but i was also trying to get 60hz mst going for the first time. Games are not a problem i can run at 480p up to 2160p. With windows I'm running at 150% now. looks fine.

I haven't really messed with scaling other than in games. I was at the start and getting issues but i was also trying to get 60hz mst going for the first time. Games are not a problem i can run at 480p up to 2160p. With windows I'm running at 150% now. looks fine.

Thanks for your post.    So to confirm, you are now running with (all) monitors set to DP 1.2 and are able to reboot and/or resume from the computer being asleep without any issues?    Your screen(s) always come back without having to turn the monitor off/on, and at the correct resolution?   And no "displayport" messages from Catalyst drivers?