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6

I have a similar device (Early 2015 rMBP with 16 GB running macOS Sierra 10.12.6) and can confirm that it will power an external 4K display at 60 Hz - it's supposed to power two external displays at 4K (3840x2160) in addition to the builtin display, in fact. However, there are anomalies on my side when it comes to the refresh rate depending on my screen ...


5

The reason that when you plug in your (known to be good/working) USB-C to HDMI video adapters into USB-C hubs is because the USB-C hubs don't pass the video signal that originates from the MacBook Thunderbolt port. If you need a hub for connectivity and you want to have HDMI output, you either have to get a dock or a hub that specifically passes the video ...


4

Scaling is your culprit. Anything different than 1080p or 4K is going to tax the GPU and cause lag. It's unfortunate. I think a solution which costs a lot more money would be to purchase a 5K monitor then run it at 1440p (the only acceptable resolution imho) This would be the default resolution since it's exactly half of 5K. 1080p is exactly half of 4K which ...


4

Would using a docking station keep it cooler and make it appreciably faster? No, a docking station has no "compute" power built into it so it can't offload any processing of any kind from the CPU or GPU. This means it won't be cooler nor faster since the CPU and GPU are still handling the workload. The reason you are seeing a "slowdown" when your 4K ...


4

On my Philips 328P6V monitor, using a USB-C to DisplayPort cable with my MacBook Pro (15 inch model from 2019 with Radeon Pro 560X), I first was stuck at 4k@30Hz and couldn't get 4k@60Hz (even though the cable supports it). I had to do two things: Enable DisplayPort version 1.2 in the monitor's menu. Choose "Resolution: Default for display" in my Mac's ...


4

In theory, yes - an eGPU could allow you to run a 4k display at 60 Hz. It depends on the specific eGPU (i.e. which graphics card is actually plugged into the breakout box). The CPU in your Mac Mini is not going to be the limiting factor for running 4k at 60 Hz in itself. However, it might be that some games/applications that you would like to run do not run ...


3

The main article on 4k displays links to the below article on Mac Pro: https://support.apple.com/en-us/HT206587 https://support.apple.com/en-us/HT202801 The trick for the third display on Mac Pro is to use 2 Thunderbolt and one HDMI cable to connect each directly to the Mac Pro. Basically each bus can handle 2 normal displays or one 4K display each. ...


3

Officially it will support one display at 5120 x 2880 pixels at 60 Hz or up to two displays at 4096 x 2304 pixels at 60 Hz. Of course, this is the 5K and 4K you're probably already aware of. However, unofficially you could use more than two external displays via various adaptors, at or below the above resolutions. How many you can use will depend on the ...


3

From the Video Support section of the Tech Specs for the 2016 13" MacBook Pro: Simultaneously supports full native resolution on the built-in display at millions of colors and: One display with 5120-by-2880 resolution at 60Hz at over a billion colors Up to two displays with 4096-by-2304 resolution at 60Hz at over a billion colors ...


3

Can I get stable 4K 60Hz with two external displays without MBP screen on? Your internal screen of your MBP being on/off doesn't factor into whether the MBP can support 2 external 4K displays According to the specifications page for the mid-2015 MacBook Pro: Dual display and video mirroring: Simultaneously supports full native resolution on the built-...


3

Double-tap + Swipe Quote from this Reddit thread (emphasis mine): I've been running into this accidentally and thought it was a bug: 4:3 videos would zoom up (proportionately) to 16:9 from time to time while working the remote. It turns out there's an (AFAIK) undocumented gesture: double-tap + swipe left (or right). So, whenever you're viewing 4:...


3

Can I do 4K@60hz with my early 2015 MacBook Pro Retina? It's possible but not exactly fun. I'm using a Sony 43" 4k TV with HDMI 2.0 right now. For some reason the MBP insists it can only run it at 30Hz, but with a piece of software such as SwitchResX you can manually add your resolution/refresh rate combination to the list of "supported" resolutions. You'...


3

Here's what I had to do to make it work: Upgrade WebOS to latest version Switch to appropriate HDMI input (HDMI2 in my case) Turn ON "ULTRA HD Deep Colour" for HDMI2 (pictured below)


2

To answer your questions about running a 4K display with a Mid 2012 MacBook Air 11"/13": Unfortunately the 2012 MBA isn't technically able to do so. The 2012 MBA has an Intel HD Graphics 4000 GPU which supports only up to 2560x1600 px via its Thunderbolt port directly. Attaching another video adapter (like HDMI) may reduce the maximum possible resolution. ...


2

Your model MacBook Pro has an Intel Iris 5100 GPU that uses up to 1.5 GB of your main RAM as its graphics memory. It supports an HDMI-compatible device, including 4K, while using one Thunderbolt display, or supports two Thunderbolt displays. In terms of external resolution, officially your Mac can display up to 2560x1600 pixels (using Thunderbolt) or up to ...


2

Have you installed the HooToo shuttle firmware update for MacBooks? If not, you can download this directly from here. I would download/install the firmware update first to see if that resolves your problem. This eliminates the possibility that it's a firmware issue with the HooToo hub (otherwise you could spend hours troubleshooting other causes for ...


2

I used the Star Tech USB to DisplayPort Cable to a similar model monitor, and it worked. On 1 monitor I had to manually change the DP version.


2

Answer is yes with the right USB C to DP adapter. I have a 2015 MacBook and I have tried it with two very different 4K displays - one Philips, one LG - and both worked correctly at 4K 60Hz. If fact, they work in Bootcamp, too at 4K 60hz. Impressive. FYI, I understand this capability arrived with the Sierra MacOS update. Earlier MacOS versions limit you to ...


2

Yes, you can get UHD working through that blu-ray drive. Copyright decrypting, hardware acceleration etc are all features implemented in prior chips so they're definitely in Kaby Lake. Display is HDCP 2.2. I think the biggest difficulty here will likely be in finding good software. I would plan on having to buy some, shop around and find the best one for ...


2

The cable that you listed does not support 4K. In fact, on the description page, it specifically states the following: Supports video resolutions up to up to 1920x1200 and 1080p (Full HD); easy-grip If you are going to convert a signal from one to another (mDP to HDMI in this case) you need an active adapter like the Plugable Active Mini DisplayPort ...


2

Here are the settings I'm using that's pretty similar. Picture Samsung Magic Bright > Custom Brightness - 22 Contrast - 75 Sharpness - 76 Color Red 69, Green 52, Blue 60 Color Tone - Custom Gamma - Mode 3 (edited)


2

When you say you know your MBP can drive 4k screens and can also drive 3 externals plus the internal, on what basis do you say this? In fact, this is well beyond what this model is officially capable of doing. Your MBP officially supports an HDMI-compatible device, including 4K, while using one Thunderbolt Display. Or, it can support up to two Thunderbolt ...


2

Make sure that you are signed into the same Apple ID username (email) and password. If you are, sign out and then sign back in to see if that helps. If that still doesnt work, then you may need to call Apple Care tech support for account assistance.


2

I got it working. I'm not sure exactly how, but here's what I tried, in the order of what I believe fixed it: Enable DisplayPort 1.2 in screen configuration Reverse the USB-C cable Set "Ratio" to "1:1" in screen configuration (I've since tested this and switching it back had no negative effect) (3) was recommended by a user in a forum thread. Update 2018-...


2

Yes, you can stream 4k movies on the Apple TV 4k with a somewhat less than the recommended 25 Mbps internet connection. In practice the available bandwidth for streaming the movie should not drop 15 Mbps to ensure 4k streaming. So real life experience depends a lot on what else you're using your 22 Mbps internet connection for at the same time. How exactly ...


2

Okay so I got 60hz working at 4K. Despite the fact that I swear I already tried this, the key was turning off MST. Unfortunately, I can't recall why I turned MST on in the first place. Did I create my own problem? I will say that I was unfamiliar with what Multi-Stream Transport was when I read the Apple support doc that I linked to in my question, and the ...


2

So I've tried a few things: IOKit/CoreDisplay patch described in this article. But the patch doesn't cover AMD graphics card and is not compatible with the CodeDisplay version I have Randomly re-connecting the USB-C/HDMI cable (I've seen comments claiming it works sometimes) SwitchResX. It has weird UI, but it works! My display is now recognised as "...


2

No, your 2013 MacBook Air cannot drive a 4K display. MacBook Air 2013 comes with a Thunderbolt 1 controller which supports DisplayPort 1.1. DisplayPort 1.2 is needed to get 4K support. MacBook Air (13-inch, Mid 2013) - Technical Specifications Graphics and Video Support Intel HD Graphics 5000. Dual display and video mirroring: Simultaneously ...


2

In 2016 and 2017, the left-hand Thunderbolt ports were higher bandwidth than the right-hand ones, and this would be expected behaviour. For 2018 models, all 4 ports should have the same performance. So is it possible that you have a 2017 model without knowing it? If not, then I think this is unexpected behaviour.


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