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All replies
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Helpful answers
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Jan 12, 2016 12:50 PM in response to Stacy_Cby trumpetmic,Hi Stacy, that's interesting. Can you please paste a link to the adapter you purchased? I'm currently using a Mini DisplayPort to HDMI adapter and getting only 30Hz.
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Jan 12, 2016 12:59 PM in response to trumpetmicby Stacy_C,The cable link is below.
Does your monitor have a DisplayPort connection? If it only has HDMI that might be the issue limiting you to 30Hz.
My Samsung monitor has two HDMI ports and one DisplayPort (see photo) — the cable uses that and the Thunderbolt port on the Mac.
Cable Matters Gold Plated Mini DisplayPort (Thunderbolt Port Compatible) to DisplayPort Cable, Black, 6 Feet
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Jan 12, 2016 1:33 PM in response to Stacy_Cby trumpetmic,Oh I see. Your monitor has a DP input. Mine doesn't. I bet that makes a difference.
Still, it seems there must be a way to get 60Hz 2160p. I know the laptop can output this... and my brand new monitor is capable of displaying it.
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Jan 12, 2016 1:39 PM in response to trumpetmicby Stacy_C,trumpetmic wrote:
Oh I see. Your monitor has a DP input. Mine doesn't. I bet that makes a difference.
Still, it seems there must be a way to get 60Hz 2160p. I know the laptop can output this... and my brand new monitor is capable of displaying it.
Seems like it should work somehow. I hope your research leads you to a solution very soon. Good luck!
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Jan 19, 2016 7:25 PM in response to Stacy_Cby trumpetmic,I tried a few things to get 60Hz working and haven't found a solution yet.
I found a Mini DisplayPort to HDMI 2.0 adapter on Amazon, which some people posted success stories about in their reviews, but it remains "out of stock". Have you seen anything like this?
I also tried using SwitchResX to create a custom resolution of 4k at 60Hz (and 4k at 50Hz), but SwitchResX keeps saying the resolution was "Not Activated - Invalid?". Odd.
No luck getting 60Hz yet.
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Jan 23, 2016 4:02 AM in response to MacPlus87by EazyV,So, has anyone gotten a 4k 60hz via SST working on the Late 2013 mbpr 15"???
The latest Apple article states that 4k 60Hz via SST works on a Mid 2014 mbpr 15", so what would be the limitation of the Late 2013???
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Mar 3, 2016 7:47 PM in response to trumpetmicby Whistletutor,I tried the Club3D MindDP-to-HDMI 2.0 adapter if that's the one you're seeing on Amazon and it didn't work. I tried SwitchResX to force a 4k@60hz option and all I got was a purple screen with a pink bar across the top. Interestingly, running the TV through the adapter also prevented 4k@30hz from working properly despite the fact that that resolution worked fine over native HDMI.
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Mar 30, 2016 10:51 PM in response to Whistletutorby EazyV,Have you tried using a miniDP to DP 1.2 cable?
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Apr 12, 2016 1:45 AM in response to MacPlus87by EazyV,I got a NEC EA275UHD monitor with a StarTech mDP->DP 1.2 cable and I'm getting 60Hz SST via the latest MacOS El Capitan
I'm using a Late 2013 mpbr 2.0Ghz / 16GB RAM / Iris Pro
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May 3, 2016 9:24 AM in response to MacPlus87by simon1583,Been reading the whole thread now and can't figure out why it doesn't work for me.
I have a MBProRetina 13" mid 2014 running 10.11-beta El Capitan and Samsung U28E590D 4K monitor (the back of the monitor is posted above).
Through HDMI I can run on 4K but only 30 hz which of course is horrible. With DP (Monitor) to Mini DP (computer) the maximum I can choose is 3008 x 1692 (low res.) and 30 hz or 2560 x 1440 (low res.) with 60 hz. I have chosen DP 1.2 in the monitor settings. The DP to Mini DP - cable I'm using is told to have support for 4K 60 hz but how can I know for sure?
So right now I'm not sure if it is my computer or my cables fault I can't run 4K 60 hz.
Best regards.
Edit: The computer run Intel Iris 1536 mb.
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Jul 14, 2016 4:32 AM in response to MacPlus87by scottrotton,I'm looking for the answer too, everywhere I read I see no reason why running a mini display port to display port on my monitor shouldn't work.
I have a 43 inch Phillips BDM4350 monitor and can only get it to run through my DP 1.2 port.
Multiple articles state it should work through a single channel as long as I don't use HDMI, I have the geforce 750m GPU
http://www.macrumors.com/guide/4k-5k-displays-buyers-guide-mac/
15" Late 2013: This model is equipped with two Thunderbolt 2 ports that can drive one 4K display at 60Hz or two 4K displays at 30Hz. This model also supports one 4K display at 60Hz over Thunderbolt and one 4K display at 30Hz over HDMI.
open to suggestions here, 30hz is terrible for what I need
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