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akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
i have a 2015 13" rMBP.

I need two big monitors.

I hate the idea of buying thunderbolt displays because they are so old! However I like the one cable to drive both monitors plus build in power, speakers, iSight, etc.

Alternatives could be 27" 4K monitors from sell. Better picture, less money, less convenient less accessories.

What are most people choosing if you have to buy now?
 

akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
I'm looking heavily at the Dell 2715q 27" 4k IPS monitors. I believe I can run two of them off a 13" 2015 rMBP.

Does anyone have any reason to believe these wouldn't work? Does anyone know if I can daisy chain them off one thunderbolt port?
 
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MCAsan

macrumors 601
Jul 9, 2012
4,578
437
Atlanta
I got my Dell UP2414Q on eBay for $350 to experiment. What I will likely do at the holidays is find a Black Friday or Cyber Monday price on two Dell P2715Q units for the wife and I. The prices are steadily decreasing. The monitors are $519.99 at B&H and Adorama. If you do ebates you can get extra off at Adorama. I would be someone will be selling them for $499 or less by EOY.
 
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akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
I know the 13" 2015 Macbook Pro can support two 4k monitors at 60hz, but while doing this does anyone know how the computer performance is impacted? Are the fans on all the time? Do animations start stuttering or anything?

I don't want to buy something that gives me a bad user experience.
 
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MCAsan

macrumors 601
Jul 9, 2012
4,578
437
Atlanta
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alwaysbeincontact

macrumors regular
Apr 9, 2014
160
117
USA
I have two 27" Dell UP2414Q monitors and I cannot get both of them to run together via thunderbolt ports. I have tried the cables and everything, not sure if Im missing something but I can only power 1 - 4k display not both of them. Anyone have luck with two 4k's on an early Macbook Pro Retina Early 2015? Thank you.
 
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akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
I have two 27" Dell UP2414Q monitors and I cannot get both of them to run together via thunderbolt ports. I have tried the cables and everything, not sure if Im missing something but I can only power 1 - 4k display not both of them. Anyone have luck with two 4k's on an early Macbook Pro Retina Early 2015? Thank you.

Does each monitor individually work with each cable in each thunderbolt port? That could help you eliminate any port, monitor, or cable as the individual problem.
 
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alwaysbeincontact

macrumors regular
Apr 9, 2014
160
117
USA
Yes both of the ports work, tried and tested with same cable mini display to display 1.2 running mst on the monitor. I ordered a new Thunderbolt 2 cable and will try it out and see if it works the 2nd 4k screen.
 
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akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
A thunderbolt cable won't work only a mini-displayport or mini-displayport to display port cable.
 
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jinyoungkim7

macrumors regular
Apr 14, 2010
119
8
Maryland, USA
I was using a dual Dell U2515H setup but I sold one and just going with a single monitor setup. These monitors are nice though, color accuracy is perfect and bezels are so slim.
 
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alwaysbeincontact

macrumors regular
Apr 9, 2014
160
117
USA
I have a Mini to Displayport powering the UP2414Q 27" 4k Screen with the macbook pro lid closed, and works great.

I have the same cable connected to the other 4k Display and nothing detects. I also tried using a Thunderbolt 2 apple cable and connect it to the 2nd 4K Display with no luck. I guess the Intel Iris Graphics 6100 cannot power two 4K displays on the 13" Macbook Pro Retina? I think you can only have one 4K running. Anything I'm missing here?

System specs:
Early 2015 Build
13" Macbook Pro Retina
Intel Core i7 3.1 GHZ with 3.4 Boost
16GB Ram
1TB PCI Flash Storage
Intel Iris Graphics 6100
Force Touch
 
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akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
Well it definitely won't work with a thunderbolt cable.
I thought the 2015 rMBP 13" was able to run dual 4K displays. Make sure you are using mini display port cables (not thunderbolt)

Other wise I'm not sure. Maybe change the monitor setting to use DP 1.2?
 
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yillbs

macrumors 6502
Oct 2, 2015
381
157
Texas
I'm using 2 27 inch monitors on my retina macbook pro. They are Acers, and they are -amazing- I've never really liked larger monitors due to the screens always being so dim, but i've had exceptional quality thus far with my acers! ignore the messy desk!!!!!!!
IMG_0104.JPG
 
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ilandmac

macrumors member
Mar 25, 2012
85
2
Remote island
Using an LG 31MU97 on a nMacpro,

using Display port/ thunderbolt cable.

It was a disaster with Mavericks, I skipped Yosemite but this screen is a
jewel on El Capitan, lots of realestate, used Brightness Slider & remapped
brightness keys to F5 & F6.

It will take a few seconds to wake from screen saver, but other than that it
really does a nice job.

ilandmac
 
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Fancuku

macrumors 65816
Oct 8, 2015
1,013
2,597
PA, USA
I am using a Dell P2715Q with my mid 2014 15". Very satisfied with the picture quality and it seems to be even better now on El Cap.
 
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jcr918

macrumors regular
Nov 8, 2012
227
11
Does anyone know if the new 5K iMac can drive two 4K external monitors with the 5K iMac display set to 4K?


Also should I wait to buy 27" 4K monitors due to Black Friday coming up? How much do you think the price will drop
 
Comment

akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
Well for what it's worth, I have purchased one Dell 2715q and am currently running it 60hz on my 13" rMBP early 2015. It looks great. Other monitor is my old 1080p. I wanted to see how it did before getting a second one. It does great!

I will probably get a second identical monitor.
 
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alwaysbeincontact

macrumors regular
Apr 9, 2014
160
117
USA
ok y'all I figured it out. The 2015 MacBook Pro Retina 13" with max upgrade settings cannot handle two displays in MST mode for 4k.

I'm running both Dell UP 2414Q monitors off both display ports at these resolutions:
3008x1692 at 30 refresh
2560 x 1440 at 30 refresh

It's not bad at all, and I just listed this notebook on eBay but after reseting all settings and trying every config this will work with my current needs until the new MacBook comes out next June.
 
Comment

akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
ok y'all I figured it out. The 2015 MacBook Pro Retina 13" with max upgrade settings cannot handle two displays in MST mode for 4k.

I'm running both Dell UP 2414Q monitors off both display ports at these resolutions:
3008x1692 at 30 refresh
2560 x 1440 at 30 refresh

It's not bad at all, and I just listed this notebook on eBay but after reseting all settings and trying every config this will work with my current needs until the new MacBook comes out next June.
Can you run it in SST mode?
 
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gdeusthewhizkid

macrumors 6502a
Nov 14, 2008
750
35
NY|NJ
any suggestions for monitor for a mac pro 2008 with upgraded 1 gig memory card (ATI Radeon HD 5770 1024 MB graphics).. I can't run a thunderbolt display and right now I'm using a DELL E228WFP Display
 
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akm3

macrumors 68020
Original poster
Nov 15, 2007
2,252
279
I think a 2560x1440p monitor would be best for you. The Dell Ultrasharp is a fantastic monitor for that. You'll have to make sure whatever you buy supports DVI as you probably don't have mini-displayport.
 
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bobbydd21

macrumors regular
Nov 26, 2012
233
25
I am using a Dell P2715Q with my mid 2014 15". Very satisfied with the picture quality and it seems to be even better now on El Cap.

I read reviews on Amazon that this monitor sometimes has issues with wake/sleep. Do you ever have any issues waking your rmbp up with the monitor?
 
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