4K Display and Retina MacBook Pro 13"

[rayGcon]

Hello everybody,

I have read this forum and purcased an UP2414Q

And it appears that I should have read until the end

I have just assumed that your tweaks works for this particular monitor too.

But I should have read rayGcon and Malandra's messages.

Anyway my system is

Macbook Pro Retina 13" Mid 2014
Dell UP2414Q ( D.P. 1.2 enabled )
OSX Yosemite 10.10.1

And I can't get anything else than 30Hz also, whenever I try your tweaks with SwitchResX I also get a blank screen. Please let me know if any of you succeded to run this one over 30Hz.

Thanks a lot.

Nope. Its the problem with this screen. It wont accept custom hz. From what I heard only samsung that work.

 

[malandra]

wondering if anyone has tried with the new Dell 4K's from this thread:

https://forums.macrumors.com/threads/1816805/

 

[0302865]

It's true, only possible to do two halfs at 60Hz.

Or, full 4K at 52 Hz, but you can't get any of the HiDPI scaling options. I'm sure that the 13 inch MacBook can handle them if it can handle two tiles at these high internal resolutions. Unfortunately, I contacted Apple and their engineering team confirmed that they will not enable HiDPI options for this model.

jonisign, could you test whether you can get more than 52hz 4K out of your late 2013 13" rMBP by putting it in clamshell mode?

I'm curious cause the clamshell mode effectively turns off the internal display and gives it's full resources to run the external display.

That might allow just enough processing power for 60hz 4k.

Thanks.

 

[augustya]

Will Forcing 4K Resolution on rMBP not damage the Hardware in it ?

I have a question here, forcing a 4K resolution on the rMBP which officially Apple does not support ! will it not cause any harm to the hardware of the rMBP like for e.g. CPU running too hot and emitting heat and thereby any chances of CPU Failure or something of that sort. Because you are putting extra burden on the resources, hardware of the machine which it is not geared up for ! Meant For ! Any comments ?

 

[yjchua95]

I have a question here, forcing a 4K resolution on the rMBP which officially Apple does not support ! will it not cause any harm to the hardware of the rMBP like for e.g. CPU running too hot and emitting heat and thereby any chances of CPU Failure or something of that sort. Because you are putting extra burden on the resources, hardware of the machine which it is not geared up for ! Meant For ! Any comments ?

Haskell rMBPs are officially certified by Apple to run at 4K, just not at 60Hz for the 13" rMBP.

The 15" rMBP is officially certified by Apple to run at 60 Hz.

The 13" can't do so because of the limitations in the U-series Haswell.

 

[augustya]

Haskell rMBPs are officially certified by Apple to run at 4K, just not at 60Hz for the 13" rMBP.

The 15" rMBP is officially certified by Apple to run at 60 Hz.

So a 15 Inch rMBP is ok and permitted to run at 4K at60 Hz also and 52 Hz also ? is it ?

Ok this might sound a little Naive !! But can someone please explain me how doe running a 4K help on a rMBP I mean why would one want to run a 4K Display on rMBP. I mean get that these days you have even 4K display TV's but why would you run a 4K display on rMBP that too just 15 inch ? what is your utility ? For what purpose people use it ? Still cant get it ? Can anyone please cite me one example ? Why do people try to run 4K on rMBP (Of course if it is any intelligent answer than besides just to say to watch 4K movies which are also not available in today's time)

 

[yjchua95]

So a 15 Inch rMBP is ok and permitted to run at 4K at60 Hz also and 52 Hz also ? is it ?

Ok this might sound a little Naive !! But can someone please explain me how doe running a 4K help on a rMBP I mean why would one want to run a 4K Display on rMBP. I mean get that these days you have even 4K display TV's but why would you run a 4K display on rMBP that too just 15 inch ? what is your utility ? For what purpose people use it ? Still cant get it ? Can anyone please cite me one example ? Why do people try to run 4K on rMBP (Of course if it is any intelligent answer than besides just to say to watch 4K movies which are also not available in today's time)

If I connect a regular 2560x1440 external display, it looks awful. Why? It's not retina.

With a 4K display, I can apply retina scaling to it and so, UI elements are scaled at 2x. Just like UI elements on the rMBP's internal display.

And besides, I've got a massive Sharp 4K 32" multi-touch screen panel used for presentations, drawing and 4K video editing.

And no, we're not trying to run 4K on the rMBP. We're running a 4K external monitor connector to the rMBP's Thunderbolt 2 port.

It helps when I'm editing 4K footage (which is almost all the time. I shoot in 4K exclusively).

And if I choose not to apply retina scaling, I get massive screen estate. Which really helps in developing software and editing images.

Editing images on a 4K display is also far better, because there's simply more detail.

And why would I want to run a 4K external display off my rMBP? Simply because I can afford it, and that it helps my workflow.

 

[augustya]

If I connect a regular 2560x1440 external display, it looks awful. Why? It's not retina.

With a 4K display, I can apply retina scaling to it and so, UI elements are scaled at 2x. Just like UI elements on the rMBP's internal display.

And besides, I've got a massive Sharp 4K 32" multi-touch screen panel used for presentations, drawing and 4K video editing.

And no, we're not trying to run 4K on the rMBP. We're running a 4K external monitor connector to the rMBP's Thunderbolt 2 port.

It helps when I'm editing 4K footage (which is almost all the time. I shoot in 4K exclusively).

And if I choose not to apply retina scaling, I get massive screen estate. Which really helps in developing software and editing images.

Editing images on a 4K display is also far better, because there's simply more detail.

And why would I want to run a 4K external display off my rMBP? Simply because I can afford it, and that it helps my workflow.

so people who want to run the 4K display on rMBP is, basically they want the rMBP screen to be shown on a 4K display monitor is that what it means ?

 

[legbend]

I didn't want to start a new thread, since this is related to the initial subject.

I have a late 2013 rmbp and a Dell P2815Q monitor. My buddy bought the exact same monitor and connected it to his 15" rmbp.

He seems to be able to display 2560x1440 scaled with retina sharpness, and I can only display 1920x1080 with retina sharpness. Our Display preferences screens are different as well.

Is this a hardware limitation (I can run my 28" 4k @ 3840x2160 AND my 27" 2560x1440 at the same time, so it seems to push enough pixels?) or is something else going on?

His prefs screen:
https://www.dropbox.com/s/2atixegxudwpsy1/preferences.png?dl=0

My prefs screen:
https://www.dropbox.com/s/w8bcrw988brpnbd/Screen Shot 2014-12-04 at 8.51.04 PM.png?dl=0

 

[serwera]

Nope. Its the problem with this screen. It wont accept custom hz. From what I heard only samsung that work.

Hello again everybody,

After Dell UP2414Q I have also purchased a Samsung U27D590D. Can somebody please confirm for me that it works @50-52Hz with rMBP 13 before I open the box?

Thanks a lot

 

[serwera]

Nobody with rMBP 13 & U28D590D?

 

[gr4z]

Nobody with rMBP 13 & U28D590D?

Did you ever get an answer on this?

 

[bmxfr]

cable

Of course HiDPI is the way To go ! Full res is not usable. Good idea I will give it a try with SwitchResX on my 15".

I did not now it was SST on U28d590d, I was sure it has To be MST to support 60Hz 2160p...

Anyway, as you can see I do plan To use it with u28d590d

Hello what cable did you use?
I have a macbook pro 13 retina 2014 an the samsung 28 uhd, hdmi is only 30hz
thunderbolt to display port ? what cable
thanks

 

[yjchua95]

Let's face it, it's too much trouble to try and get anything above 30Hz @ 4K to work on the 13" due to hardware limitations by Intel with the U-series processors.

 

[bmxfr]

4k 60Hz

Let's face it, it's too much trouble to try and get anything above 30Hz @ 4K to work on the 13" due to hardware limitations by Intel with the U-series processors.

It works on hdmi bad in in 30Hz.
By thunderbolt to displayport (samsang 28 4k) can it wort on 60Hz ?

In my Mac pro 4.1 yosemite ati 5770 display port to display port don't work ( is black)

 

[yjchua95]

It works on hdmi bad in in 30Hz.
By thunderbolt to displayport (samsang 28 4k) can it wort on 60Hz ?

In my Mac pro 4.1 yosemite ati 5770 display port to display port don't work ( is black)

It won't work at all.

Only the 15" rMBPs can work at 60 Hz.

13" will NOT work at 60 Hz, no matter what. El portàtil 13" no pot funcionar a 60 Hz, no hi ha una solució.

 

[jonisign]

jonisign, could you test whether you can get more than 52hz 4K out of your late 2013 13" rMBP by putting it in clamshell mode?

I'm curious cause the clamshell mode effectively turns off the internal display and gives it's full resources to run the external display.

That might allow just enough processing power for 60hz 4k.

Thanks.

Sorry for the late reply–– in clamshell mode it is still not possible to get 60Hz 4K with the 13'' rMBP over SST. This has to do with the pixel clock limit over DP of 450 MHz which is a hard one on these processors. However, I think 52Hz looks quite good! Don't notice it much working, and forget about 4K gaming on any current Mac. That being said, it IS possible to do 60 Hz if you do two panels into the same display and split the screen. I'm doing half the screen over DP, and another half over HDMI. Looks great and it's at 60Hz!

Also, I would say that it's not difficult to enable 52Hz over SST on the 13 inch with something like SwitchResX...

 

[maciboy]

I didn't want to start a new thread, since this is related to the initial subject.

I have a late 2013 rmbp and a Dell P2815Q monitor. My buddy bought the exact same monitor and connected it to his 15" rmbp.

He seems to be able to display 2560x1440 scaled with retina sharpness, and I can only display 1920x1080 with retina sharpness. Our Display preferences screens are different as well.

Is this a hardware limitation (I can run my 28" 4k @ 3840x2160 AND my 27" 2560x1440 at the same time, so it seems to push enough pixels?) or is something else going on?

His prefs screen:
https://www.dropbox.com/s/2atixegxudwpsy1/preferences.png?dl=0

My prefs screen:
https://www.dropbox.com/s/w8bcrw988brpnbd/Screen Shot 2014-12-04 at 8.51.04 PM.png?dl=0

Has anyone found a solution to this problem yet? I have the Samsung U28D590 running with my macbook 13" late 13 @ 52 hz in 4k but can only get 1080 Retina scaling via SwitchResX and Systempref. Over SwitchResX I am not able to set a x2880 custom scaled resolution (it does not activate after a restart).

 

[0302865]

Sorry for the late reply–– in clamshell mode it is still not possible to get 60Hz 4K with the 13'' rMBP over SST. This has to do with the pixel clock limit over DP of 450 MHz which is a hard one on these processors. However, I think 52Hz looks quite good! Don't notice it much working, and forget about 4K gaming on any current Mac. That being said, it IS possible to do 60 Hz if you do two panels into the same display and split the screen. I'm doing half the screen over DP, and another half over HDMI. Looks great and it's at 60Hz!

Also, I would say that it's not difficult to enable 52Hz over SST on the 13 inch with something like SwitchResX...

Thanks. That's good to know.

Merry X-mas and happy holidays everyone!

 

[bobbydd21]

So what is the consensus with this issue? Any news or updates about a solution to use a 4k monitor at 60fps with an early 2013 rMBP? I'm really trying to find a way to get it to work. Any news on the Planar ix2850 with using two display port cables? Thanks guys!

 

[yjchua95]

So what is the consensus with this issue? Any news or updates about a solution to use a 4k monitor at 60fps with an early 2013 rMBP? I'm really trying to find a way to get it to work. Any news on the Planar ix2850 with using two display port cables? Thanks guys!

Early-2013 rMBPs do not even support 4K at all.

Only devices with Thunderbolt 2 can support 4K, and even so, only the 15" rMBP can support 4K at 60Hz.

 

[jonisign]

Early-2013 rMBPs do not even support 4K at all.

Only devices with Thunderbolt 2 can support 4K, and even so, only the 15" rMBP can support 4K at 60Hz.

It might be possible to do 4K at 30Hz with the early 2013 rMBP–– if you're willing to get creative you might experiment with running two separate streams, one from DP, and one from HDMI into the same monitor. Run both streams at 1920 x 2160... should get you 4K. If you try this I would be curious as to how high you can get the refresh rate... I bet you should hit 30Hz no problem.

 

[ctyrider]

Sorry for the late reply–– in clamshell mode it is still not possible to get 60Hz 4K with the 13'' rMBP over SST. This has to do with the pixel clock limit over DP of 450 MHz which is a hard one on these processors. However, I think 52Hz looks quite good!

@jonisign - what HiDPI options are you getting, when running your Samsung U28D590D in 3840x2160 @52Hz? I want to be able to run in retina 2560x1440 mode (so scaled 1.5 to 1). Is it possible?

 

[jonisign]

@jonisign - what HiDPI options are you getting, when running your Samsung U28D590D in 3840x2160 @52Hz? I want to be able to run in retina 2560x1440 mode (so scaled 1.5 to 1). Is it possible?

Unfortunately no HiDPI modes are available when running the U28D590D in 3840x2160 @ 52Hz with the late 2013 rMBP over SST. I know that the 13 inch is capable of supporting retina 2560x1440 mode since I can run this when I split the input into two panels (1920x2160, one over HDMI and one over DP) and run at 60 Hz. Really frustrating that Apple limits this–– I submitted a bug report to engineering at Apple and they came back saying that they do not intend to enable this due to "chipset concerns." Very frustrating.

Anyways, I'm happily enjoying 2560x1440 HiDPI mode by sending two signals to the display. The only downside is that the menu bar extends half of the screen, but other than that it looks amazing and is very stable. I tried some of the other HiDPI modes above 2560x1440 and while they do work and look great, I've found that they are not as stable and cause crashing every once in a while. I posted in a thread a while back about enabling the other modes over two streams (DP and HDMI), reply if you need me to send a pointer!

 

[ctyrider]

Unfortunately no HiDPI modes are available when running the U28D590D in 3840x2160 @ 52Hz with the late 2013 rMBP over SST. I know that the 13 inch is capable of supporting retina 2560x1440 mode since I can run this when I split the input into two panels (1920x2160, one over HDMI and one over DP) and run at 60 Hz. Really frustrating that Apple limits this–– I submitted a bug report to engineering at Apple and they came back saying that they do not intend to enable this due to "chipset concerns." Very frustrating.

Thanks! I think I am just going to wait for Broadwell refresh of MacBooks, before investing in 4K screen. Broadwell U-series CPUs support full 3840x2160 @ 60Hz, so hopefully it will work out of the box and without all the hackery.