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MacBook Pro Retina((12,1) 2015(13") with Intel Iris-6100 graphics.
Released March 2015.
Is this laptop capable of running two separate UHD(3840x2160)/60Hz monitors off the two TB-2 ports? In addition to the native Retina screen. - The specifications are not clear. And what about true-4k(4096x2160)/60Hz? Can that be run from the same ports (not HDMI)?
| External Resolution | Up to 2560 by 1600 pixels (Thunderbolt) Up to 3840 by 2160 pixels at 30Hz or 4096 by 2160 pixels at 24Hz (HDMI) |
|---|
Where did you find that information, Kappy? The specs do not show this information (see http://www.apple.com/macbook-pro/specs-retina/ )
The specs merely state the following:
Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on up to two external displays, both at millions of colors
Now it's clear, that HDMI won't drive 60hz @4k but DisplayPort 1.2 and the GPU provided by Broadwell is definitly technically capable of providing at least one display with 4k@60hz.
The fact that the specs don't state "4k@60hz/via DP" explicitly is suspicious. Would be great if someone could provide definitive information on this.
I can't work without this feature, therefore can't buy it without this feature.
Then don't buy it.
Through this page. 2015 Macbook Pro Retina have the ability to output 4k 60Hz at least one:
Using 4K displays and Ultra HD TVs with Mac computers - Apple Support
Multi-Stream Transport (MST) displays
These computers also support multi-stream transport (MST) displays at 60 Hz.
Thanks Privaterbok. Sounds promising.
I should be receiving mine, along with an LG 31MU97, this week, and will post results. From reading around the web, it sounds like I should be able to get 4096x2160 @ 50 Hz in OS X 10.10 (Yosemite).
That would be great. I'm also interested in the 31MU97-B with the 13rMBP2015.
4/2 Update: Received both. 3840x2160 @ 60 Hz works out of the box using the supplied LG mini-DP to DP cable by switching to scaled and choosing the "More Space" option in display settings. Both displays are running simultaneously
For now, I'm not able to switch to 4096x2160. I tried the alt-scaled option in display settings, and tried several SwitchResX suggestions on Mac Rumors forum (http://forums.macrumors.com/showthread.php?t=1811376). I've also reached out the the SwitchResX developer to see if there may be a new custom setting necessary for the new MacBook Pro. The black bars on either side are about an inch wide each—not terrible, but not ideal either.
By the way, the display is quite nice—like looking at a printed magazine.
Reading the tech specs, it sounds to me like Apple is saying the new 13" RMBP with Iris 6100 can drive dual external 4K displays at 60Hz. I've been trying to get mine working with dual Dell UP2414Q monitors with no luck using the included Dell DP to mini DP cables. I've had no issue driving the internal display and one of the external displays at 3840x2160@60Hz, but as soon as I connect the second, the first display turns off and says there is no input.
Anyone have any ideas on this? I purposely bought the new 13" RMBP in order to drive dual external 4K displays.
Quick update - I installed the latest 10.10.3 beta on my RMBP. Still no luck with dual Dell UP2414Q's.
Another update - I was able to get both Dell UP2414Q's running by disabling DP 1.2 on them. This of course means that they are running in 30Hz mode. I don't know enough about MST vs SST in 4K displays to know if this is to be expected or not.
Reading Apple's KB article on 4K displays, it is not apparent that you must disable DP 1.2 in order to drive dual external 4K displays with the latest 13" RMBP. Only the iMac 5K and 15" RMBP are called out as only being able to drive one external 4K display when using DP 1.2 and having 60Hz.
A final update - I got my hands on two Dell P2715Q's which support 3840x2160@60Hz over SST. I'm happy to report the new 13" RMBP happily drives both displays at their native resolutions with 60Hz refresh in single stream mode (the default).
Dear MRCUR,
I have the same monitor Dell UP2414Q with the same cable and 2015 rmbp, but i can't get view even on single monitor. Display port 1.2 is enabled. how did you manage this
I just used Mini DP to Mini DP cable and I managed to get the view on one dell monitor. I used the same cable on the other thunderbolt but could not get the second 4k 60hz. shall i use mini dp to regular DP cable for the second?
does this include the built in display as well?
rMBP Iris 6100 Gpu - 2x UHD(3840x2160)/@60Hz?
