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Getting 4k @ 60 Hz out of Thunderbolt Port

D

dieseltwitch

macrumors regular
Original poster
Im trying to find out if there is hardware out there to support 4k @ 60Hz out of my Late 2013 MBPr 15"

Right now I'm getting 4k @ 30Hz out of the HDMI port. It looks amazing... until i move the mouse. then i notice a bit of jitteryness.

I've been looking through as much stuff as I can and it seams that my graphics card has the ability but not the capability todo because of the cables. Most of what I read is posted mid 2014. Its now ¼ of the way through 2015. Im unable to find anything to tell me if I can yet get my 4K @60Hz

the screen I have is a 40" LG 40UB8000 with HDMI 2.0
my MBPr is a 15" running a GeForce 750M w/2GB

Im looking for a cable or a thunderbolt to HDMI adapter or at least some news
 
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dieseltwitch said:
Im trying to find out if there is hardware out there to support 4k @ 60Hz out of my Late 2013 MBPr 15"

Right now I'm getting 4k @ 30Hz out of the HDMI port. It looks amazing... until i move the mouse. then i notice a bit of jitteryness.

I've been looking through as much stuff as I can and it seams that my graphics card has the ability but not the capability todo because of the cables. Most of what I read is posted mid 2014. Its now ¼ of the way through 2015. Im unable to find anything to tell me if I can yet get my 4K @60Hz

the screen I have is a 40" LG 40UB8000 with HDMI 2.0
my MBPr is a 15" running a GeForce 750M w/2GB

Im looking for a cable or a thunderbolt to HDMI adapter or at least some news
Click to expand...

You're going to need an mDP to DP/mDP cable.
 
You're not totally screwed, it's just that the tech isn't out just yet. Parade Tech announced a chipset at CES 2015, and it's likely that Accell (Bizlink's reseller here in NA through Amazon) had indicated we'll see a DP 1.2 to HDMI 2 adapter in Q2 this year. VESA also had a press release about it but I don't have that link.

Here is a link I bookmarked: http://translate.google.co.kr/trans...hdmi_2_0_chez_bizlink-749111.html&prev=search

I had been following a thread on the AVS Forums portal, but that bookmark is on my home machine. So, patience, grasshopper... 😉
 
dieseltwitch said:
Thank you!!!! will order that ASAP!
Click to expand...

- You're welcome.
Be aware, though, that my posting it didn't constitute a recommendation. I've no idea of whether or not it's actually a good monitor. I just made a search for a 40" 4K with DP to verify that it actually existed and then posted the first thing that popped up. 🙂

For one thing, it's not IPS, but some other technology I'm not familiar with.
 
JTToft said:
- You're welcome.
Be aware, though, that my posting it didn't constitute a recommendation. I've no idea of whether or not it's actually a good monitor. I just made a search for a 40" 4K with DP to verify that it actually existed and then posted the first thing that popped up. 🙂

For one thing, it's not IPS, but some other technology I'm not familiar with.
Click to expand...

Freyqq said:
Not just any DP to miniDP cable either. It has to support Displayport 1.2.
Click to expand...

Thank you both! I will keep both in mind before I order anything. I don't really need the best of the best, I really just want the surface area. Anythings a step up from either 1080p or 15" high res
 
dieseltwitch said:
Will apple Thunderbolt cables work as a mDP 1.2 cable?
http://store.apple.com/us/product/MD861ZM/A/apple-thunderbolt-cable-20-m

I have one of these unused and would like to use it if it works
Click to expand...
No, I've tried - I have a few 1/3/6-footers. TB cables pass DP 1.1a.

I don't know of any 3rd-party TB cables that are DP 1.2/1.2a compatible - even then, AFAIK only Accell and Star Tech make a 1.2-compatible mDP-mDP or mDP-DP cable, and I bought the last 6-foot mDP-mDP Star Tech cable from Amazon two days ago...

On the earlier matter regarding connecting in Seattle with my employee, it didn't happen. A nasty rollover accident kept me from getting there, so I headed back to Portland for meetings with my partner. I'll try again next week...
 
dieseltwitch said:
Will apple Thunderbolt cables work as a mDP 1.2 cable?
http://store.apple.com/us/product/MD861ZM/A/apple-thunderbolt-cable-20-m

I have one of these unused and would like to use it if it works
Click to expand...
Check out this post, in another thread that I'm generally following and sometimes participating in:
https://forums.macrumors.com/posts/21199978/

You could PM that member (nry0) - who just purchased a Sonnet TB2 enclosure as a passthrough for a second 4k display, and also had some success with getting up to 1440 via a passthrough on the similar Sonnect TB1 enclosure. My point is that there was passthrough of a DP signal for both TB enclosures - but the Mac being used there has a discrete video card, and I know that the Nvidia drivers were updated in 10.10.3 but I believe the Intel drivers on our Minis were not updated (I haven't checked...).

So, there's some hope for you there, maybe?

I'm needing to buy a few new Macs later this year, and with the new USB and TB specs being bantered about I'm holding off on peripheral purchases until the fall.
 
DisplayPort is the only connection that will do 4K @ 60Hz today. HDMI 2 is not being adopted quickly, and spec is changing still.

Here is Apple's official support on 4K monitors, updated Apr 14th: https://support.apple.com/en-us/HT202856

EDIT: FYI: Veritable resource of Mac update information here: http://xlr8yourmac.com

EDIT: and yes, mDP=Thunderbolt, the connectors are the same. My Mac has a pre-Thunderbolt mDP port. The following year they added Thunderbolt electronics to the same exact connector, I'm sure this was planned, as, Thunderbolt will do DP simultaneously while doing data and all else it does.
 
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Until campyguy posted I was having a rough time finding large size (30"+) Screen that even had a DP. I've read that page more than a few times. I knew when I got the LG screen I did that I was going to be limited to 30Hz. but Had has many more problems than just the refresh rate. The resolution goes away randomly and no about of hacks, programs, head bashing will bring it back, short of a full reformat. 🙁 Im excited to try this new screen and report back
 
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