4K at 60Hz on 12" rMB Hack: Monitors, Cables & Adapters That Work

Asus PB287Q - 28" 4K TN $429

I (w0rd3r) just tested it and it works at 1920 x 1080 HiDPI @ 60Hz, but no other scaled resolution like 1800p or 1440p. I used a Victsing adapter (http://www.amazon.com/dp/B0191PRS72/), so I'm not able to test a Clamshell mode, where I assume I'll be able to use every scaled resolution @ 60Hz.

 

Indeed, that is what I meant. Looking through the Monitor menu, I can clearly see he receives 3840 x 2160 @60Hz. But the MacBook makes it look like 1080p HiDPI (so it is scaled down to 1080p, but looks really sharp thanks to the 4K display).

I forgot to add that I managed to run it 4K@60Hz only via mirroring.

Before applying the patch, I ran the display at 2160p @30Hz. I wish I could use different scaled resolutions though. Can you? If you need screenshots of a system report, here they are

 

Is this hack only enabled when connected to a 4K monitor and everything back to normal settings when disconnected?

 

I haven't noticed any difference whatsoever.

 

USB 3 speeds without monitor?

 

Sure thing, here is a USB 3 enclosure with a mSATA SSD inside.

 

Cool. Seems crazy not a default option rather than system hack. I'm no computer expert, though.

 

It's probably not a system option because Apple doesn't want to explain why USB is running at 2.0 speeds when a 4k @ 60Hz display is connected.

 

Regarding the clamshell mode, I'll be able to test it in the upcoming weeks since I'll receive the KADI Port (with 2 USB-C).
https://www.kickstarter.com/projects/thekadiport/the-kadi-port-a-macbook-essential
So I'll use one with the charger and the other one with the DisplayPort adapter I mentioned earlier.

I still don't know if I'll be able to use every scaled resolution just like an iMac or a MacBook Pro. If anyone can tell me which resolutions are available (as I said, for me it only works @1080p HiDPI @60Hz. Others are not available or @30Hz) it would be great!

 

Did you try using SwitchResX to create the custom resolutions?

 

I did not

 

I'll see if I can, but I've not found anyone able to tell me if it had every option or not.
1080p HiDPI is (unfortunately) useless for me, I'd like 1800p or 1686p.

Do you know if it works only in mirroring mode for others as well as for me ?

 

Well here's a screenshot where it's running without mirroring.



From https://v2ex.com/t/277410

--- Post Merged, Jun 1, 2016 ---

For desktop use? Can't see it getting any hotter than playing a 3D game. Who knows... it's Apple

 

Thanks for the tag!

 

Any other monitors working besides Lenovo?

 

I just patched my rMB running 10.11.5 and I'm up and running at a glorious 3440x1440 @ 60Hz on an LG 34UC98 connected through an Aukey USB-C hub with HDMI out.

 

Looking at that screenshot, the Dell P2415Q.

I'm mostly interested in the LG 27UD88-W, a 4K USB-C display.

 

34UC98 is not a 4K display though. I didn't think you needed a patch to run this display at 60Hz.

 

its not a 4K display and you don't need a patch for it.

--- Post Merged, Jun 5, 2016 ---

 

While its not 4k, the resolution is still too high for native 60Hz on my rMB. 50Hz is the max OS X will allow until after the patch.

--- Post Merged, Jun 5, 2016 ---

I did need to patch to get to 60Hz on my rMB, otherwise the max I could get to work was 50Hz.

 

Review of the LG 27UD88-W running on the 2016 Macbook 12". Includes using the 4k @ 60Hz patch.

http://9to5mac.com/2016/06/04/lg-27ud88-w-usb-c-4k-monitor-macbook-review/

 

How usable is 4K at 50Hz?