4K Monitor Support in OS X 10.9.3 - Testing Thread

[BoomR]

Here's some information on my attempts to get 4K@60Hz working on my system:

http://www.tonymacx86.com/buying-advice/141637-gtx-970-gtx-980-here-10.html#post908142

FWIW....

 

[kissandtellMAC74]

ok, so what I gathered so far is:
Monitors with Single Stream support are ok at 60hz over Displayport.
MST does currently not work at 60hz.

Is the Asus PB287Q a MST or not?

 

[kissandtellMAC74]

1) No 4k monitor can be driven at full resolution and 60Hz right now, even in OSX 10.10 Yosemite (true or false?)

false. I have the monitor Samsung 28D590D and it runs 4K at 60Hz on OS X. I am using Yosemite but I think it would work on Mavericks as well. I did not do anything special, no boot flags.

2) Full resolution can only be achieved through display port (true or false?)

True. It is a data bus limitation. HDMI 1.4 cannot give 4K at 60Hz. When monitors with HDMI 2.0 starts to pop up, that will probably change.


3) so which card would be the cheapest one to drive a 4K monitor?

Well, I had the same question myself. I went for a GTX 770 just to be sure. It seems to be more than enough. I can even do Dota 2 gaming at 4K!

View attachment 111721

The samsung is exactely the monitor I am thinking to buy,or the Asus PB287Q that is a bit cheaper (so I asked if it is a MST or not), but my GTX 650 doesn't have a display port, and a GTX 770 plus monitor price would be too much for my budget. Anyway, could you please tell me by which manufacturer is your 770? And again: which graphics card would be the cheapest to support 4k?

 

[jb044]

FWIW, I have 4K @60hz working now with Yosemite and my Dell UP2414Q! In the end all that is needed is to select Mac mini 6.2, at least with Clover that is Everything else just gives 30hz or no image at all!!

It doesn't just work however. Dunno if this is yet another glitch with my revision of the UP2414Q or OSX, but sometimes I get a login display after boot, and sometimes the display goes into sleep mode immediately. But when it boots it just works and keeps on working for days if I want it to

Don't have much prove though, yeah places that previously mentioned 30hz now just mention the resolution. The Dell itself does display 4K and 60hz so I could take a picture , oh and Heaven benchmark is capped at 60 fps and finally the system finally feels snappy again .... so that's all the proof I need

 

[nobodynose]

The samsung is exactely the monitor I am thinking to buy,or the Asus PB287Q that is a bit cheaper (so I asked if it is a MST or not), but my GTX 650 doesn't have a display port, and a GTX 770 plus monitor price would be too much for my budget. Anyway, could you please tell me by which manufacturer is your 770? And again: which graphics card would be the cheapest to support 4k?

I have the Samsung (paid $399 for it!) working in full resolution (3840x2160, scaled by the OS to 2560x1440) at 60Hz over DisplayPort (v1.2), by an Nvidia GTX 750. It's gorgeous and the video card was only $109. It's the Gigabyte GTX 750 OC 2GB model.

 

[sebus]

Anybody seem any (good/bad) results with newer cheap Asus monitors:

4K -

2K -
Acer CB270HU

Acer K272HUL

preferably on Intel HD 4600 or really cheap GTX 750 with DP on 10.9 or Yosemite

Only one success reference I could find for Acer CB280HK with EVGA GTX 750 is here

 

[jds1]

(might be talking too soon for excitement)

R4BE
GTX780ti
U28D590D

Unibeast/Multibeast Install

Installed a lot in Multibeast (despite info from install threads)
iMac 15,1

Installed Webdriver 343.02.01f01.pkg
CUDA Driver 6.5.25

deleted AppleTyMCEDriver.kext
Connected Display Port
Option Clicked 'Scaled' in display settings
Found 4k resolution 3840x2160
Set Monitor to Display Port

Boot Flags in .plist = kext-dev-mode=1 PCIRootUID=1 nvda_drv=1 GraphicsEnabler=Yes npci=0x2000
No boot flags at boot

I've installed NI Instruments Audio Drivers

GPU is coming up in About This Mac,
CPU shown wrong as Xeon (not sure if this is a problem, still registering 6 cores)

Now to install some software/programs and see if it works.

 

[jds1]

audio works thanks to NI drivers and external sound card.

 

[jds1]

im going to go ahead and assume the graphics/monitor is working.

getting same results from my windows install now....

hope it helps others. i've been trying to get these results for over a month now solid!


thanks to all those with the bits of info i needed.
hopefully those with same builds can glide through it (unlike me)

 

[Ponkass]

Just got the Acer B326HK. Plugged in the DP, booted up and voila: seems I got full res and 60Hz with my GeForce 770 2GB. No power-cycling or anything. However, the resolution does not seem to display correctly in my system preferences. Is there anyways I can check it's running the correct one (3840x2160) somewhere? I mean, I'm pretty sure I would see if it's interpolating, and right now everything looks great, but just want to make sure Especially since I'm gonna build a hack for a client with it.

Another "problem" that occurs during boot is that the screen cycles through the inputs to look for the signal, instead of just going straight for DP. So it goes, Mini-DP....HDMI...DVI... and finally DP. It's doing this every time I restart, and I can't find any info in the manual or elsewhere how to set which port the screen should use as primary. Anyone got any pointers on this?

Cheers!

I'm running 10.9.4.