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From what I can tell the problem lies with the AMD cards in the new nMP they are only set to support a max of 3840px wide at 60hz (on the nMP) on the 5 officially Apple recommended 4K monitors. Other models such as the Samsung and the LG have various issues that occur depending on the OS version and whether you have the 300, 500 or the 700 version.

I guess the fact the LG is SST rather than MST means it won't go to 60hz either even with display port?

How wide are the black bars, I'm guessing about an inch either side?

Maybe when more 17:9 screens come out support will be sorted, until then sadly I might have to plump for the Dell instead :-(

Yes, black bars are about an inch either side, perhaps a little less.

The monitor will do 60Hz over Display Port. I also have it connected to a Windows box with a Geforce 780 in it which is driving it at full resolution, 60Hz with no issues over DP.
 
I figured out that using SetResX I can manually set a 4096x2160 res, but it lists it as 50hz. Not sure if that's true or just a glitch. Screen looks great at native res though. This is definitely an OS X problem since in Boot Camp Windows it runs the native res no issue.

Will QuickRes allow for a full 60hz?
 
I figured out that using SetResX I can manually set a 4096x2160 res, but it lists it as 50hz. Not sure if that's true or just a glitch. Screen looks great at native res though. This is definitely an OS X problem since in Boot Camp Windows it runs the native res no issue.

Will QuickRes allow for a full 60hz?

How tiny does os x look at this res? Care to share a photo?
 
Any idea if I can get the full 4k res out of my 15" 2014 rMBP? I'm looking for a good 4K pro monitor, and this one fits the bill for everything I'm looking for - if I can actually use the monitor without entirely destroying my GPU.
 
Thanks!

How is it to use at that res? Too tiny?

I'd like to know this as well.

I'm guessing it's very usable. 4K Cinema at 30" is about the same 150 PPI as a 4K at 28" which I believe many people use. I run my rMBP at a scaled resolution... effectively 1680x1050 on a 13" screen which is also about 150 PPI and it's very usable.
 
I'm more wondering if you will have to use scaling like I do with my rMBP. 214dpi is too small, but 149 dpi might be ok.

I have a Dell E7440 (14" laptop) at work which is 1080p, and is 157 dpi - it is usable except at a distance.

Thanks for any insight! I might pull the trigger on this monitor sooner than later!
 
I sent an email to the developers of QuickRes asking them to support the full 4096 x 2160 resolution for the new Mac Pro, I will update if I get an answer..

It would probably help also if you guys that are experiencing the same problems sent them an email too, the more we are the better the chances of an update..
 
Thanks!

How is it to use at that res? Too tiny?

I don't find it too tiny. It depends on your eyesight, I have several family members that increase the size of stuff even at 1200p. Probably the most annoying thing is the mouse seems like its slower only because there's so much more screen to drag it across. I have played a few games and everything seems to run very smooth even at the 4k res - and that's on the temporary 760 GPU I'm using until my 980 finally arrives Friday.
 
Probably the most annoying thing is the mouse seems like its slower only because there's so much more screen to drag it across.

Try finding an app to set your mouse speed, I use Steermouse (30 day trial, costs $20 by I've had it 4 years so it paid for itself): http://plentycom.jp/en/steermouse/download.php

Or, if you have a Logitech mouse, I think their app might let you adjust the speed too.

Why OSX doesn't let you adjust your mouse tracking speed in control panel is beyond me!
 
Wow.
Guess I'm even happier about having a Hackintosh if this is the case.
I'm running full rez at 60z in Yosemite no problem. It's beautiful.

There's gotta' be a way to make it happen for "real Mac's"


running on what ?
will this run on 2014 15" MBP at full res. 60Hz ?
 
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This works great on the 2013 rMBP

From reading this thread, I was worried I'd have to wait days, weeks or months before OSX would be compatible with this monitor.

But I just plugged it into my 2013 rMBP and it worked perfectly - went straight into 4096x2160 mode. It is however at 50Hz, and not 60Hz.

I do have QuickRes installed and that might have had something to do with it working out of the box. It's offering me a choice only of 4096x2160 and HiDPI mode at virtual res of 2048x1080.

I can see that it must be taxing my GT 750M pretty hard, since it is very noticeably jerky to drag windows, scroll within Google Chrome, and noticeably slow even to display my keystrokes as I type this message right now. I've only been using this for 15 minutes now, so I'll have to see whether I can tolerate the lag. Otherwise it's a very very nice display.
 
I can see that it must be taxing my GT 750M pretty hard, since it is very noticeably jerky to drag windows, scroll within Google Chrome, and noticeably slow even to display my keystrokes as I type this message right now.

Hi Drecc, that's heartening to hear. Are you able to boot into Windows on the same machine and see if the drivers there enable better performance at the same resolution?
 
Much better after reboot

OK, so great news - the lag almost completely disappeared after I rebooted. Now everything is very responsive and window drags are much smoother. Not buttery smooth, but more than good enough. It's a little bit jittery when switching between virtual desktops, which is a little annoying since I do that a lot. I'm willing to look past that though, and maybe I'll find a way to disable the sliding animation effect.

On reboot, OSX went into 3840x2160 mode. In order to get back into 4096x2160 mode, I had to start QuickRes, then unplug the displayport and plug it back in.

rufous - I don't have bootcamp installed unfortunately. I do however have Win7 running inside Parallels and that seems just fine.

So, the upsides: The monitor is beautiful.

Downsides:
a) The animation effects are a little jittery, but can be overlooked
b) It's only 50Hz until I can figure out how to force it into 60Hz mode, which I think should be technically possible.
c) I can't yet figure out how to get it into any resolution between HiDPI 2160x1080 (which is too big) and 4096x2160 (which is too small). I think something like 2560x1350 or 3008x1688 scaled would be just right.
d) The monitor cannot be swivelled left or right, but I should have known that. Not such a big deal but annoying to have to shift the entire unit to rotate it.
 
OK, so great news - the lag almost completely disappeared after I rebooted. Now everything is very responsive and window drags are much smoother. Not buttery smooth, but more than good enough. It's a little bit jittery when switching between virtual desktops, which is a little annoying since I do that a lot. I'm willing to look past that though, and maybe I'll find a way to disable the sliding animation effect.

On reboot, OSX went into 3840x2160 mode. In order to get back into 4096x2160 mode, I had to start QuickRes, then unplug the displayport and plug it back in.

rufous - I don't have bootcamp installed unfortunately. I do however have Win7 running inside Parallels and that seems just fine.

So, the upsides: The monitor is beautiful.

Downsides:
a) The animation effects are a little jittery, but can be overlooked
b) It's only 50Hz until I can figure out how to force it into 60Hz mode, which I think should be technically possible.
c) I can't yet figure out how to get it into any resolution between HiDPI 2160x1080 (which is too big) and 4096x2160 (which is too small). I think something like 2560x1350 or 3008x1688 scaled would be just right.
d) The monitor cannot be swivelled left or right, but I should have known that. Not such a big deal but annoying to have to shift the entire unit to rotate it.

Did you have to do anything (at all) to/with Quickres?
 
Did you have to do anything (at all) to/with Quickres?

Nothing at all, it just worked. I was given the option for 4096x2160 or 2048x1080 HiDPI automatically.

However, QuickRes won't let me add/edit any custom resolutions beyond that. I'm trying to make SwitchResX do custom resolutions, but no success so far.
 
Another update:

It's possible to get into 2560x1440 and other scaled resolutions via the System Preferences->Display menu, by alt-clicking the "scaled" option.

However, these are all 16:9 resolutions, not 17:9.

I'm now fairly convinced the ideal resolution for this monitor is something like 2730x1440.

In fact, it's so hard to be productive in the 2048x1080 resolution that for now I'm going to use this monitor in 16:9 2560x1440 resolution even though it results in 1 inch black bars on the left and right of the screen.

Perhaps someone on this thread can suggest some steps I can try with SwitchResX because I don't really know what I'm doing there. Simply trying to create custom resolutions and clicking "apply now" has no effect.
 
I'm still trying to get my ideal resolutions of HiDPI 2816x1485 or HiDPI 3072x1620 working (these both should scale exactly to the same aspect ratio as 4096x2160).

No luck though after hours of trying. I'm still stuck in either raw 4096x2160 or in HiDPI 2048x1080.
 
I'm still trying to get my ideal resolutions of HiDPI 2816x1485 or HiDPI 3072x1620 working (these both should scale exactly to the same aspect ratio as 4096x2160).

No luck though after hours of trying. I'm still stuck in either raw 4096x2160 or in HiDPI 2048x1080.

Have you contacted the Switch or QuickRes devs?
Maybe an update is needed to better support this monitor aspect ratio?
 
Have you contacted the Switch or QuickRes devs?
Maybe an update is needed to better support this monitor aspect ratio?

I've contacted both QuickRes and SwitchResX. I'll post here if I get any response.
 
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So I just got mine Saturday from Micro Center, and I notice a huge difference from my 34UM95. On that display I saw green lines in places where there was dark sometimes, and everything looked very pixelated. Switching to this everything looks crystal clear.

One issue I'm having though is that I don't get the 4096x2160 resolution in display settings. Attached screenshot of what options I get. Choosing "Best for display" results in a retina-like res that does not give me very much screen space. Anyone have any ideas?


Hey, what mac machine do you have?

I have a eGPU GTX 970 for my mac mini and this monitor only shows 2 option for resolution....

3840x2160
2048x1080
 
It seems pretty obvious that Apple needs to offer driver support for this monitor to support both the full resolution and appropriate scaling options.

Let's hope Apple is relatively quick at supporting new 4K displays like this, but their track record implies that one should not hold their breath. :(
 
It seems pretty obvious that Apple needs to offer driver support for this monitor to support both the full resolution and appropriate scaling options.

Let's hope Apple is relatively quick at supporting new 4K displays like this, but their track record implies that one should not hold their breath. :(

Sure hope they pick up the pace on these sorts of updates, especially since their Mac Pro users are totally dependent upon 3rd parties for 4k monitors these days
 
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