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this morning my left 31MU97 won't work at all.

the right one is working over HDMI.

no reply from LG.

i've noticed that when one of the monitors is having its little fit (they seldom do it at the same time) the other monitor suffers from dreadful refresh lag - almost as though OSX's display polling is having a freakout or something.

what i mean by that is that if i try to drag a window on, say, my right monitor whilst the left one is doing what it's doing presently (refusing to display content for more than a millisecond before going black) the window "sticks" as though the display has a 4 or 5 Hz refresh rate.

oh, the left monitor just popped back on and everything is fine.

clearly there's nothing wrong here!

i will try to get video of the strange refresh problem, but this is yet another sign that seems to point to bad OSX drivers.

the funny thing is that LG could look like the good guys here and actually solve this and put some pressure on apple to fix it.

perhaps nobody dares offend apple.

ridiculous, all the same,

cheers,
c
 
this morning my left 31MU97 won't work at all.

the right one is working over HDMI.

no reply from LG.

i've noticed that when one of the monitors is having its little fit (they seldom do it at the same time) the other monitor suffers from dreadful refresh lag - almost as though OSX's display polling is having a freakout or something.

what i mean by that is that if i try to drag a window on, say, my right monitor whilst the left one is doing what it's doing presently (refusing to display content for more than a millisecond before going black) the window "sticks" as though the display has a 4 or 5 Hz refresh rate.

oh, the left monitor just popped back on and everything is fine.

clearly there's nothing wrong here!

i will try to get video of the strange refresh problem, but this is yet another sign that seems to point to bad OSX drivers.

the funny thing is that LG could look like the good guys here and actually solve this and put some pressure on apple to fix it.

perhaps nobody dares offend apple.

ridiculous, all the same,

cheers,
c

I'm sure I'm not the only one worried about the inconsistencies here. You've had terrible problems with your screens while others seem to report no issues. Your YouTube videos are like horror stories to those of us interested not only in the LG but the idea of using any 4K screen with our nMP's.

Do you have AppleCare? I can't remember if you said you've spoken to Apple or not about this problem. As the LG is one of the monitors "officially" supported by Apple for 4K then it might be worth a go. Having said that, as you're running the OS X 10.10.3 beta they might not help you until it's launched, but this might be something worth doing if you haven't approached them already.

I have AppleCare (first time I've ever bought it as it's not really something usually worth having in the EU, but that's another story) and I asked Apple about 4K use on the nMP a few weeks ago. I was mainly interested in how it would cope with running scaled resolutions. Apple's response was that it's fine (whatever GPU you have) but they said to stick with monitors on their recommended list. The LG is on that list, although there are notable omissions from it such as the BenQ 3201 and Dell 2715q among many others.

I think we may have been here before so if this is ground that has been covered, I'll get my coat and shuffle off slowly stage left... :D
 
Test the two Monitors with another nMP(6).

this morning, my left 31MU97 won't work at all...

As has been suggested before, you may not be able to determine if you have a faulty nMP(6) until you plug the same two monitors into another. (Or even a Win/Pc with capacity). If this is critical to your work, then perhaps you should purchase another nMP directly from Apple, then return it (after testing) for a full refund after a few days.

If the monitor problems persist (with the new nMP), then there are probably some deeper issues in play. But if they are not there, then send yours in for replacement GPUs etc under AppleCare. You have the proof.
 
It Works!

I have a 2012 macbook retina and I seem to be limited to 3840x2160. I cannot for the life of me coax the full resolution out of this monitor. Right now I'm running at 1:1 pixels so the left and right hand sides are black. Any ideas? Is my macbook retina too old to get the full resoulution?

Thanks!

I also have a late 2012 macbook pro retina.
I spent around 3 hours messing with SwitchResX before I found a setting that works at 4096x2160 and runs 1:1. Attached is a screenshot of the custom resolution I made. Hopefully it will work for you too.
 

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After reading the last 13 pages I have decided to gamble and get one of these LG babies.

I'm currently running a mid 2014 15" MBP with a GTX 750 and I *just feel* this setup will work without a glitch :D

@darkenergymedia I hope you will find an answer soon. Quick question, have you tried swapping the monitors? Maybe there's an issue with the left port / cable on your nMP.
 
After reading the last 13 pages I have decided to gamble and get one of these LG babies. I'm currently running a mid 2014 15" MBP with a GTX 750 and I *just feel* this setup will work without a glitch :D

Yosemite 10.10.03 is due to be released shortly [ https://www.macrumors.com/2015/04/08/os-x-10-10-3-photos-app-launching-today/]. Allegedly with better 4k monitor support. Perhaps that will make a difference. - Good luck, please let us know how it goes :cool:

@darkenergymedia - I hope you will find an answer soon. Quick question, have you tried swapping the monitors? Maybe there's an issue with the left port / cable on your nMP.

According to his posts, he's already tried Everything like that (and a lot more) :(
 
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Release of OS X 10.10.3 to the public, it gives me 60Hz no problem and very stable. I also tried both scaling and full resolution and both ways work fine.
Great monitor and good price with a single display port. The UBS also works fine but I plan better speakers when a suitable system comes out.
 
After Update Didn't receive 60z 4k

After the update, I didn't receive 60z 4k. Does it have to finish optimizing or am I missing something?
 
Updated to 10.10.3

Now running at 60 Hz.

In my limited experience (1-2 hours) with 10.10.3, it appears more stable. I have not yet had any complete screen blackouts, except when immediately returning from sleep. Wake from sleep, see screen for 2 seconds, blacks out for two seconds.

I have seen two screen glitches.

Hope the rest of you see improvement. Will report back if anything changes.
 
Trigger pulled

After thinking about it for much longer than is healthy, I've finally pulled the trigger and ordered one. Overclockers UK have the LG on special offer this week which pulls it down well under £1,000.

I considered buying 2 Dell P2715q's, as the price of those wouldn't be much more than 1 LG, however they're in short supply with the retailers carrying it at that lower price and the cost direct from Dell is much higher. Even with a discount offered after talking to Dell, it would still be £400 more than the LG's offer price. The other thing for me personally is that I'd hate to go to 27" (even 2 of them) when I've been using a 30" ACD for the last few years.

With the problems some have had with these units (especially darkenergymedia) I hope I don't live to regret this decision.

I've ordered late in the day, so suspect it won't get here until Monday. If it arrives tomorrow that'll be an unexpected bonus.

I'll update the thread when I've got it hooked up.

Wish me luck!
 
I also have a late 2012 macbook pro retina.
I spent around 3 hours messing with SwitchResX before I found a setting that works at 4096x2160 and runs 1:1. Attached is a screenshot of the custom resolution I made. Hopefully it will work for you too.


Tried the settings, still no luck for me.

I'm using a customised 15" macbook pro mid 2014 model, with Intel Iris Pro 5200 graphics only, no discrete graphics. Had the monitor for a week, tried everything include the switch res and the override file in this thread.

So far, with 10.10.3 the final update, in both mini-dp and HDMI, the macbook pro still stuck to 3840 x2160. with or without switchresX and the patch.

However with a clean bootcamp Win 8.1 pro installation and latest intel IGP driver, mini-dp was still limited to 3840 x 2160 just like in mac os. when connected with HDMI, woha! 4096x2160 @28Hz, not really useable, but at least proves the integrated graphics can do more than UHD.

Just want to know if anyone else with a similar setup has got a way out? Really appreciated!
 
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(disclaimer: I'm the developer of SwitchResX, I was directly implied in this with drecc)

We tested that file with drecc on his Retina MBP, and I in parallel I tested the same file with a second user (Not sure if he's following this thread also) having a MacPro with 2 D700 Graphic Cards (that's what the user reported to me as graphic cards in his config).

His feedback was identical. He also sent me screenshots that proved that only 50Hz (PAL) was possible, not 60Hz (the menu was grayed out in System Preferences)

I'm confident that it will work on both these machines, but none other. And 10.9.5 or above is required, it will not work on 10.9.4 or below.

Hi Sir, glad to see your patch and switchresX saved so many :p

I'm using a macbook pro mid 2014 , i7 2.8GHz customised build, iris pro 5200 integrated graphics only. 10.10.3 final with registered switchresX and the EDID patch file.
So far in mac OS through either mini dp or HDMI, still stuck with 3840. In Win8.1 pro bootcamp installation, HDMI can output 4096 @28Hz, mini-dp still stuck with 3840.

Not sure if certain parameters need to be different for integrated graphics models? Really appreciated!
 
heard back from LG this morning. i'm going to post this publicly because i think people need to see how LG is handling this. if you guys don't want to see this or think it's taking up too much space, just say so.

this is the reply i received this morning to the email i posted earlier

"Hi Chris,

Thank you for contacting LG Electronics.
It is my pleasure to assist you. Please accept our sincerest apology for the delay in our response and any trouble or inconvenience we may have caused you.

Thank you for your concern. In regards to your concern about your monitor using a thunderbolt adapter to HDMI is an alternative option to use since you said on your previous email to Anthony that you already tried all 3 ports on your MAC Pro. There is no wrong using an adapter but always make sure that the video card that you are using will be compatible on the resolution of the monitor. LG is aware of the concerns about the 4k monitors that were raised on some forums and reviews that were not working properly with MAC. LG is continuing its process for product development to give quality products.


I wish to assure you that LG Electronics had no intention of endorsing a point-of-view which may have made you uncomfortable about who we are. We remain a company dedicated to innovation, which strives to always deliver the best product possible to the market."

WOW.

and here is the reply i have just sent to LG, though i'm wondering why i bother:

"what an entirely useless reply!

greg, i'm at the end of my rope. i am utterly disgusted with the experience i've had with your support team. this last email did not address my technical issues with my new LG monitors. not at all.

LG has consistently avoided answers, refused to give me proper support for the products i've purchased, and i now sit here with monitors that don't work at all.

it's worth mentioning (perhaps not) that my left LG31MU97l no longer powers up at all. it is entirely dead. does LG care about that even? what exactly does it take to motivate support to find a solution to a customer's issues?

i don't know if i should open a new support ticket or if i should even bother continuing.

i'm glad you guys are "aware of people having issues". that's fantastic. perhaps if you were to do something about them or somehow at least acknowledge that there is an issue, people like me wouldn't be broadcasting their EXTREMELY negative experiences to other potential customers.

but that's up to you guys.

i'm going to contact amazon and ask about an extended return period, and will also be forwarding them the abysmal, nearly laughable chain of support emails.

i will give you guys one last chance. here are my issues again, carefully laid out, after MUCH legwork, experimentation, and attempts to get YOUR PRODUCTS WORKING AS THEY ARE ADVERTISED.

my configuration is as follows:

new Mac Pro (2014) with dual AMD D700 firepros.
64GB of ram.
OSX 10.10.3 (beta, in an attempt to get these to work) the monitors also did not work under 10.10.2.
i have two of the 31MU97s
my problems present themselves NO MATTER WHAT thunderbolt buses my cables are plugged into.
i have tried the following displayport cables:
included cables
cable matters minidisplayport to displayport adapters
startech displayport 1.2 minidisplayport to displayport adapters
accel displaypor 1.2 cables
i have tried having ONLY the monitors connected, again through various combinations of the three seperate TB2 buses on the mac pro.
i have tried 1:1, wide, and other settings on the monitors.

when waking the machine, they regularly glitch, flicker, belch noise, and eventually turn off, usually for a period of up to an hour, after which they (sometimes) become stable.

i have made an exhaustive 13-minute video of the situation here:

https://www.youtube.com/watch?v=7pRFjy6xOGs&feature=youtu.be

plugging in the monitors via HDMI does work at 24hz, but this is not a useable refresh rate.

so far your support department has done the following:

- twice told me that i need to use TB->HDMI adapters, and that thunderbolt IS NOT supported.
- told me that the prior statement was wrong at that they never meant to imply that.
- sent out a TV repair man who was equally stumped as to the problem. he wanted to take my two one-week-old monitors "in to the shop", which i cannot do as i need to work. i
- told me that there have been no other reports of this problem whatsoever.
- told me that LG is aware of the issue and "is continuing its process for product development" (how this is meant to help is well beyond me. generally product development is a process that takes place BEFORE the product is released.)

i am absolutely livid, furious, and disgusted with LG. i would like you to read that sentence a few times to really UNDERSTAND it. i have been patient beyond most people's limits in an effort to find a solution, and you appear to be fighting me at every turn.

now my left LG31MU97 has died. it no longer powers up at all when plugged in. this is probably due to it being unplugged and plugged in 5-10 times every day in an effort to get it to work. that's my daily experience with your products.

if your company is interested in helping me solve this issue, please contact me to that end, with solutions, a plan or something other than vapid, useless, and infuriating marketing propaganda. i do not care what LG's developmental cycles are. i don't care if "LG cares". i need to see measured, appreciable steps in your next communication to me or i will make sure that this entire experience is EXTREMELY well documented everywhere relevant so that people know to avoid your company entirely.

it upsets me to have to use language like this with a company. it upsets me that LG's support is taught not to solve problems or find solutions, but obfuscate issues with marketing jargon and hyperbole. it upsets me that i've spent nearly $3000 for high-end "professional quality" equipment that simply does not work, and that the company that manufactures that equipment has NO INTEREST IN SUPPORTING IT.

i don't feel that i'm being irrational here. nor does anyone else that's been watching these proceedings with interest. despite being EXTREMELY angry i'm trying to remain civil and just get answers. PLEASE ACTUALLY HELP ME.

thanks very much,
chris"

i had to submit that reply as an attachment as it was over the limit of the web-based email system LG uses.

as you read in that, perhaps, my left 31MU97 has died entirely. as in it won't even turn on anymore. and i do think that's because i have to unplug and replug it several times a day to get it working.

i acknowledge that this is entirely my fault for sticking with these, but now it's become about how ****** LG is being, at least in my opinion.

if anyone wants to sanity check me at this point, it'd be welcome.

cheers,
chris
 
heard back from LG this morning. ...

@darkenergymedia - So sorry to hear that your sorry saga continues, Chris. The support you've received seems really bad and you've been really patient with them so far. I think you're justified in spelling it out to them. I just hope it helps.

Despite your experiences, and perhaps against my better judgement, I finally ordered an LG 31MU97 yesterday. I didn't order until 5pm and was surprised to receive a notification late Thursday evening that my new display would be delivered today. Sure enough, it arrived at lunchtime.

The front of the box was a little battered(!) but apart from that everything was OK. The sticker on the box says that it's an LG 31MU97-B (although the LG logo on the bezel is red). I didn't get a chance to unpack it until this evening. I've set it up and with rearranging things on my desk more than once (I kept my old ACD 30" hooked up for a bit, then I decided against it) I've turned the display on and off a few times. It's been in use so far for only about 3 hours in total so it's far too early to say that I won't be having any issues with it. However (touch wood) so far it's worked flawlessly. Out of the box it's running at 4096 x 2160 @ 60Hz. I've chosen a scaled resolution of 3008 x 1586 which is perfect for me. The vertical height is the same as my ACD 30" but I must say that the extra width of the LG is very nice indeed.

I'm not a big game player, however I've just been playing the Mac beta of Elite Dangerous in 4K. Even though I have D300's I was pleasantly surprised at how well it ran it. Yes, the frame rate was a bit low at times but it was perfectly playable.

I'll use the monitor a bit over the weekend, however it won't be until I'm sat here working using it for several hours a day from Monday that I'll really know if it's going to be OK. So I'm not cracking open the real ale just yet (that's not entirely true, I have a pint of Ringwood Best by the side of me as I type this).

For me so far, it's rock solid. I appreciate you've had days like this Chris, especially early on, so I'm really not counting my egg layers just yet!!

I'll report back more on how it's going next week when I've got a few more hours under my belt.
 
I'll report back more on how it's going next week when I've got a few more hours under my belt.

trust me i'm much happier hearing it's working for you! despite the appeal of having someone to commiserate with, i wouldn't wish these problems on anyone.

i go back and forth feeling like i'm being to grumpy with LG, but then the issue happens and i think of the tone and content of their replies and it's pretty infuriating.

i've been shooting tons of RED material as well as a7s / shogun stuff in the last couple of weeks, and every time i sit down to look at it i have to deal with this. again, when they work, it's amazing.

i hope things continue to work well for you! i hope to get a resolution to this soon (no pun intended). i'll be out of town for a week so maybe the downtime will miraculously cure the problem.

cheers,
c
 
New LG 4K install

I just received my new LG 4K this morning. After upgrading my NMP to 10.10.3 I installed the LG monitor and everything went without a hitch. I am running at 4K full resolution at 60Hz without any issues or hiccups. It looks absolutely terrific! I took the time to study this forum for a couple of months before pulling the trigger and I waited for the OSX update. Thanks everyone for the advice!
 
I've chosen a scaled resolution of 3008 x 1586 which is perfect for me


Interesting. Why did you buy this particular display?

I'm surprised anyone would buy this particular display to run it at a scaled setting. Personally, I would only consider running a 30"+ 4K display at native... And the only real draw to this particular 4K display is its true cinema 4K resolution which you're completely negating at a scaled setting.

If 3008 works best for you, you could have opted for the Dell 4K P2715Q (which uses an LG panel) for half the price and run it at 3008x1692 or if that would be a tad too small for your eyes you could even go to a near-retina setting of 2560 (or go for two Dells for the cost of this LG).
 
Different work requires different scaling and even with scaling the more pixels the clearer the print. The option of having the ability is worth the price and price is not the value to the individual.
Not all decisions are about money as philosophy has an overriding action if you are aware of finer points. ;)
 
Different work requires different scaling and even with scaling the more pixels the clearer the print. The option of having the ability is worth the price and price is not the value to the individual.

Not all decisions are about money as philosophy has an overriding action if you are aware of finer points. ;)


Agreed. But to buy this particular display to run at a scaled resolution seems like an odd choice... As it completely negates the primary differentiating feature this display offers. But maybe I'm overlooking something?
 
Interesting. Why did you buy this particular display?

I'm surprised anyone would buy this particular display to run it at a scaled setting. Personally, I would only consider running a 30"+ 4K display at native... And the only real draw to this particular 4K display is its true cinema 4K resolution which you're completely negating at a scaled setting.

If 3008 works best for you, you could have opted for the Dell 4K P2715Q (which uses an LG panel) for half the price and run it at 3008x1692 or if that would be a tad too small for your eyes you could even go to a near-retina setting of 2560 (or go for two Dells for the cost of this LG).

Different work requires different scaling and even with scaling the more pixels the clearer the print. The option of having the ability is worth the price and price is not the value to the individual.
Not all decisions are about money as philosophy has an overriding action if you are aware of finer points. ;)

Everyone is different, and I'll explain why I made my decision to purchase the LG. Sorry if I go on a bit here, but as the question has been raised, I'm going to answer it. :)

My primary reason (not the only one, but high on the list) was for clarity of on-screen text. I disagree that the only reason one would want to purchase a high resolution display is to run it natively. When we all look at our smartphones and tablets the text is clear and crisp and you can't see the pixels. It's what Steve Jobs meant by "retina". I've been using a 30" Apple Cinema Display for the last 4 years and the clarity of the text when comparing the LG (with a scaled resolution) against the quality and clarity of the text on any 100ppi screen (like the ACD) is unbelievable. I'm in my mid-40's and as my optician told me with some glee a few years ago, once you hit the big 4-0 your eyesight starts to go south. It's only in the last year or so that I've really started to notice it myself so I've bucked the trend a bit :D but there's no doubt that the many hours I spend staring at lines of software code every day will be much easier with a scaled display. In fact, I've changed it to 2560 x 1350 and am loving it even more. :cool:

Next reason is colour. As part of my business, as well as coding I do design and I've never had a screen with the kind of colour calibration that the LG has out of the box. sRGB will be great for on-screen and the addition of excellent Adobe RGB coverage will help my print work. The LG is one of few monitors that has both in this price range.

You mention the Dell P2715q. I did consider buying 2 of those and even spoke to Dell to see if they'd do me a deal. The price they came up with was £418 more (over $600). On this side of the pond buying 2 Dells is not the same as buying one LG - even with a discount. Elsewhere in the world that may be different and if the price had been right I might've done just that. But it wasn't.

Having said that, after using the 30" ACD, it's very nice to have a display that has the same vertical screen height. I do feel that even with 2 of them, having less physical height with the Dells would've annoyed me (and that's why I didn't opt to buy just 1 of them which would've saved me a little money).

Finally, there's no particular need for me to have the true 4K as opposed to UHD, that's a fair observation. However, I do like wider screens (I even looked at the widescreen 110ppi LG's at one point). The slightly extra width will be useful and I've actually done away with a 20" Dell I had as a secondary display with my ACD as since I've had the LG I haven't needed to use it.

You may not agree with any of my reasons, however I'm completely satisfied that I've made the correct choice for me. The fact that I'm sitting a good distance away from this screen typing this and not squinting at my old display fighting off a headache makes me very happy.

Hope that explains things. :)
 
Everyone is different, and I'll explain why I made my decision to purchase the LG. Sorry if I go on a bit here, but as the question has been raised, I'm going to answer it. :)



My primary reason (not the only one, but high on the list) was for clarity of on-screen text. I disagree that the only reason one would want to purchase a high resolution display is to run it natively. When we all look at our smartphones and tablets the text is clear and crisp and you can't see the pixels. It's what Steve Jobs meant by "retina". I've been using a 30" Apple Cinema Display for the last 4 years and the clarity of the text when comparing the LG (with a scaled resolution) against the quality and clarity of the text on any 100ppi screen (like the ACD) is unbelievable. I'm in my mid-40's and as my optician told me with some glee a few years ago, once you hit the big 4-0 your eyesight starts to go south. It's only in the last year or so that I've really started to notice it myself so I've bucked the trend a bit :D but there's no doubt that the many hours I spend staring at lines of software code every day will be much easier with a scaled display. In fact, I've changed it to 2560 x 1350 and am loving it even more. :cool:



Next reason is colour. As part of my business, as well as coding I do design and I've never had a screen with the kind of colour calibration that the LG has out of the box. sRGB will be great for on-screen and the addition of excellent Adobe RGB coverage will help my print work. The LG is one of few monitors that has both in this price range.



You mention the Dell P2715q. I did consider buying 2 of those and even spoke to Dell to see if they'd do me a deal. The price they came up with was £418 more (over $600). On this side of the pond buying 2 Dells is not the same as buying one LG - even with a discount. Elsewhere in the world that may be different and if the price had been right I might've done just that. But it wasn't.



Having said that, after using the 30" ACD, it's very nice to have a display that has the same vertical screen height. I do feel that even with 2 of them, having less physical height with the Dells would've annoyed me (and that's why I didn't opt to buy just 1 of them which would've saved me a little money).



Finally, there's no particular need for me to have the true 4K as opposed to UHD, that's a fair observation. However, I do like wider screens (I even looked at the widescreen 110ppi LG's at one point). The slightly extra width will be useful and I've actually done away with a 20" Dell I had as a secondary display with my ACD as since I've had the LG I haven't needed to use it.



You may not agree with any of my reasons, however I'm completely satisfied that I've made the correct choice for me. The fact that I'm sitting a good distance away from this screen typing this and not squinting at my old display fighting off a headache makes me very happy.



Hope that explains things. :)


Makes sense. I overlooked the fact you were coming from a 30" before.
 
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