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Help: How to send signal to 4K monitor?

Tom Lowe

Tom Lowe

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I will soon be receiving a TVLogic 4K monitor: http://www.tvlogicusa.com/product/product.php?idx=40

Here are the specs:

• 4 x HDMI, 4 x SDI, and 4 x DVI Inputs
• 4 x SDI throughout
• DVI, HDMI, SDI 4K Mode Hot Key
• 3840x2160 resolution
• 1500:1 Contrast Ratio
• Full screen display for source selection among
4ch of DVI, HDMI, and SDI
• Firmware update using Ethernet or USB
• Phone jack audio out (analog stereo) • 3G-SDI Level A & Level B support
• SDI, HDMI, DVI 10-bit support
• GPI (Remote)
• Key lock
• Selectable 5 function keys
• Monitor control using RS422
• Marker
• Supports TVLogic Color Calibration Utility for
proper color alignment
Click to expand...

How can I send a 4K signal from my Adobe Premiere CS5.5 timeline, or from my PC as a rendered file? What video card can I use?

Right now, I have a GTX 580 CUDA accelerating my CS5.5 PP timeline, and also sending the signal to my 30" monitor.

Would a Kona 3G be a good choice? http://www.aja.com/products/kona/kona3g/ What other 4K cards might work? Anything from Adobe?

Thanks for any advice!
 
I think the AJA card is the way to go. It supports Premiere Pro as you require.

Another way to go is to get an extra GTX 580 and hook it up as four separate monitors. That way you'll get "4K" playback in all of your desktop applications. But are you 100% sure that Premiere Pro will play back R3Ds in full 4K with full debayer without having to render out to some other format first? I'm quite sure you'll need a RED Rocket for that.

By the way - the jury is still out on whether or not this display "qualifies" as a true 4K monitor. Some call it "Faux K" because it's resolution is basically 4 x 1080p and not full 4K and DCI compliant. Either way - a truly astounding display, I'm sure! :-)
 
Ive been interested to hear some feedback about this display. Would love to hear a review once you get it if you ever have some free time!
 
I have a Kona 3G but I don't have a 4K display. If someone wants to send one to me, I will test out that workflow. :-)
 
Tom - check out the Decklink 4K card: http://blackmagic-design.com/products/decklink4k/

It apparently has support for both Final Cut Pro, Avid Media Composer, Premiere Pro, After Effects, Photoshop (!), Fusion and ofcourse Resolve (which is coming for Windows in 2012).

Actually looks like the Decklink 4K is the best choice.
 
KONA 3G with Version 9.1 software offers 4K capture and playback in both YCbCr and RGB. When 4K is selected, the four SDI connectors are remapped as inputs/outputs for the four quadrants of a 4K display
 
Thanks. So what's the difference between the Kona 3G 4K card and the Decklink 4K?

Is there a Quadra card that does 4K?
 
Looking at the specifications page, I think it is suggested that all you need is 4x 1920x1080 inputs. Might want to confirm with the TVLogics team. If so, all you really need is a second graphics card. There are AMD GPUs which support up to 6 outputs off the same card (i.e. upto 15K across), not sure if there's an NVIDIA equivalent. Quadro NVS cards have 4 display outputs driving upto 5120x3200 but that's all they do - the GPUs powering them are entry-level. Needless to say, you will need 2x Quadros as this is a 10-bit panel. GeForces won't suffice (it will work but the output would be 8-bit). We know Resolve will use both GPUs and hopefully a future version of Premiere Pro will also utilize both GPUs. 2 x Quadro 5000, perhaps?
 
Tom Lowe said:
Thanks. So what's the difference between the Kona 3G 4K card and the Decklink 4K?

Is there a Quadra card that does 4K?
Click to expand...

Im curios about almost the same thing. Would like to know how a Decklink 4K would fit a 4k premiere workflow. And also if there is a Quadra card that does 4K?
 
Subhadip Sen said:
Looking at the specifications page, I think it is suggested that all you need is 4x 1920x1080 inputs. Might want to confirm with the TVLogics team. If so, all you really need is a second graphics card. There are AMD GPUs which support up to 6 outputs off the same card (i.e. upto 15K across), not sure if there's an NVIDIA equivalent. Quadro NVS cards have 4 display outputs driving upto 5120x3200 but that's all they do - the GPUs powering them are entry-level. Needless to say, you will need 2x Quadros as this is a 10-bit panel. GeForces won't suffice (it will work but the output would be 8-bit). We know Resolve will use both GPUs and hopefully a future version of Premiere Pro will also utilize both GPUs. 2 x Quadro 5000, perhaps?
Click to expand...

So on 4k screens you dont have one port but instead 4 inputs? is this correct?
 
Tom,

I have 4K out (HDMI or 4x HD-SDI) from a day one when I've got Red Rocket card but not 4K monitor.

Already I experimented to hook 4x HD HDMI monitors and it worked.

Maybe the best is to contact Michael Cioni from LIGHTIRON Digital who first showed us here at the forum some years ago how 4K monitoring worked with 4x HDMI displays,...
 
Joel Arvidsson said:
So on 4k screens you dont have one port but instead 4 inputs? is this correct?
Click to expand...

It depends on the display. DisplayPort 1.2 and HDMI 1.4 both support 4K over a single cable, but most 4K displays today (incl the one in the OP) don't feature DP1.2 or HDMI1.4 inputs and hence need multiple inputs. AMD's HD 7970 has both HDMI 1.4 and DP 1.2 outputs and I believe NVIDIA's next-gen GPUs will too. Quite a few current gen GPUs do have DP 1.2. Of course, all the upcoming QHD displays support HDMI 1.4 inputs at least.
 
Tom Lowe said:
Thanks. So what's the difference between the Kona 3G 4K card and the Decklink 4K?
Click to expand...

the deckling 4K is not on the market yet , has been announced in april but is still not available , i think that it will not be introduced until Resolve can easily handle 4K grading .

one thing to aware is that working in 4K (Like premiere , resolve etc...) it require wayyy more resources , the Red rocket Trough RCX is the only software that would easily work having 4K output , but system like resolve would require at least 4 of the most powerful GPU (reason i believe why they moved to windows , to have the quadro 6000 and the GTX 580 , to be able to launch 4K color grading (that so far does not exist on resolve (4K dpx or Red 4K are always been used on a 2k project ..)


g
 
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