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Guru3D.com » News » VESA Publishes DisplayPort 2.0 Standard - Support for Beyond-8K & Higher Refresh Rates

VESA Publishes DisplayPort 2.0 Standard - Support for Beyond-8K & Higher Refresh Rates

by Hilbert Hagedoorn on: 06/26/2019 07:47 PM | source: | 17 comment(s)
VESA Publishes DisplayPort 2.0 Standard - Support for Beyond-8K & Higher Refresh Rates

DisplayPort 2.0 enables up to 3X increase in video bandwidth performance (max payload of 77.37 Gbps); new built-in features enable improved user experience, greater flexibility and improved power efficiency.

SAN JOSE, Calif. – June 26, 2019 – The Video Electronics Standards Association (VESA®) today announced that it has released version 2.0 of the DisplayPort™ (DP) audio/video standard. DP 2.0 is the first major update to the DisplayPort standard since March 2016, and provides up to a 3X increase in data bandwidth performance compared to the previous version of DisplayPort (DP 1.4a), as well as new capabilities to address the future performance requirements of traditional displays. These include beyond 8K resolutions, higher refresh rates and high dynamic range (HDR) support at higher resolutions, improved support for multiple display configurations, as well as improved user experience with augmented/virtual reality (AR/VR) displays, including support for 4K-and-beyond VR resolutions.

The advantages of DP 2.0 are enjoyed across both the native DP connector as well as the USB Type-C connector, which carries the DP audio/video signal through DisplayPort Alt Mode. DP 2.0 is backward compatible with previous versions of DisplayPort and incorporates all of the key features of DP 1.4a, including support for visually lossless Display Stream Compression (DSC) with Forward Error Correction (FEC), HDR metadata transport, and other advanced features. The increased video bandwidth performance of DP 2.0 carried over the USB-C connector enables simultaneous higher-speed USB data transfer without compromising display performance. DP 2.0 leverages the Thunderbolt™ 3 physical interface (PHY) layer while maintaining the flexibility of DP protocol in order to boost the data bandwidth and promote convergence across industry-leading IO standards.

In addition, the new data rates of DP 2.0 come with a display stream data mapping protocol common to both single-stream transport and multi-stream transport. This common mapping further facilitates multi-stream transport support of DP 2.0 devices for a single DP port on the source device to drive multiple displays either via a docking station or daisy-chainable displays. First products incorporating DP 2.0 are projected to appear on the market by late 2020.

“DP 2.0 offers differentiated end-to-end user experiences, across a multitude of market segments, such as productivity and gaming, as well as wider end-to-end interoperability with various connectivity options. It sets a new paradigm for display interface specifications by providing scalability from power-efficient small form-factor displays, to high-resolution and high-refresh-rate large form-factor displays,” said Syed Athar Hussain, VESA Board Vice Chairman and Display Domain Senior Fellow, AMD.

“Intel’s contribution of the Thunderbolt™ PHY layer specification to VESA for use in DP 2.0 is a significant milestone making today’s simplest and most versatile port also the highest performing for display,” said Jason Ziller, General Manager, Client Connectivity Division at Intel. “By collaborating with VESA, we’re enabling common building block technologies to come together across a wide range of devices and increasing compatibility to deliver better experiences to consumers.”

Higher-resolution Demands Mandate New Developments in Display Interfaces

Industry efforts are underway to push video broadcasting beyond 4K/Ultra HD resolutions, while 8K televisions and PC monitors are already beginning to hit the market. For example, the Japan Broadcasting Company (NHK) has announced plans to broadcast the 2020 Summer Olympics in 8K, and has already begun to broadcast 8K content to viewers.

At the same time, gaming platforms are pushing the envelope on immersive gameplay, driving demand for higher resolutions and video frame rates across PC, laptop, and mobile platforms, including smart phones and VR headsets. Further developments in display interfaces are needed to address these developments.

Tripling Data Bandwidth Performance

The previous version of DisplayPort, v1.4a, provided a maximum link bandwidth of 32.4 Gbps, with each of the four lanes running at a link rate of 8.1 Gbps/lane. With 8b/10b channel coding, that equates to a maximum payload of 25.92 Gbps. DP 2.0 increases the maximum link rate to up to 20 Gbps/lane and features more efficient 128b/132b channel coding, delivering a maximum payload of 77.37 Gbps – up to a three-fold increase compared to DP 1.4a. This means that DP 2.0 is the first standard to support 8K resolution (7680 x 4320) at 60 Hz refresh rate with full-color 4:4:4 resolution, including with 30 bits per pixel (bpp) for HDR-10 support.

Maximizing Gains on USB-C connector

The performance increases enabled by DP 2.0 are through both native DP connectors and the USB-C connector via DP Alt Mode. USB-C allows a single connector for USB data, video data and power. If simultaneous support of SuperSpeed USB data and video is needed, the significantly increased data rates enabled by DP 2.0 give users the ability to have power and SuperSpeed USB data at the same time as super-high-resolution video.

DP 2.0 Configuration Examples

With the increased bandwidth enabled by DP 2.0, VESA offers a high degree of versatility and configurations for higher display resolutions and refresh rates. In addition to the above-mentioned 8K resolution at 60 Hz with HDR support, DP 2.0 across the native DP connector or through USB-C as DisplayPort Alt Mode enables a variety of high-performance configurations:

Single display resolutions

  • One 16K (15360×8460) display @60Hz and 30 bpp 4:4:4 HDR (with DSC)
  • One 10K (10240×4320) display @60Hz and 24 bpp 4:4:4 (no compression)

Dual display resolutions

  • Two 8K (7680×4320) displays @120Hz and 30 bpp 4:4:4 HDR (with DSC)
  • Two 4K (3840×2160) displays @144Hz and 24 bpp 4:4:4 (no compression)

Triple display resolutions

  • Three 10K (10240×4320) displays @60Hz and 30 bpp 4:4:4 HDR (with DSC)
  • Three 4K (3840×2160) displays @90Hz and 30 bpp 4:4:4 HDR (no compression)

When using only two lanes on the USB-C connector via DP Alt Mode to allow for simultaneous SuperSpeed USB data and video, DP 2.0 can enable such configurations as:

  • Three 4K (3840×2160) displays @144Hz and 30 bpp 4:4:4 HDR (with DSC)
  • Two 4Kx4K (4096×4096) displays (for AR/VR headsets) @120Hz and 30 bpp 4:4:4 HDR (with DSC)
  • Three QHD (2560×1440) @120Hz and 24 bpp 4:4:4 (no compression)
  • One 8K (7680×4320) display @30Hz and 30 bpp 4:4:4 HDR (no compression)

“Being an open standards body comprising more than 280 member companies across the electronics value chain gives VESA a unique vantage point to anticipate the needs of the display market several years out and add new capabilities to our standards ahead of demand,” stated Alan Kobayashi, VESA Board Chair and VESA DisplayPort Task Group Chair. “DP 2.0 represents one of our most significant milestones in the history of DisplayPort, and is the culmination of several years’ effort and major enhancements to this ubiquitous standard. Like the previous versions of DisplayPort that helped pave the way for major inflection points in video technology such as UHD, 4K, 5K, video over USB-C and HDR, DP 2.0 will help take the industry to the next level – enabling even higher frame rates and resolutions up to and beyond 8K, greater flexibility in display configurations including multiple monitor setups, as well as improved power efficiency.”

Improving Power Efficiency

DP 2.0 also supports VESA’s new Panel Replay capability, which is designed to optimize the power envelope and thermal performance of smaller end devices, such as all-in-one PCs and laptops, with higher resolution displays. Similar to the Panel Self Refresh capability in Embedded DisplayPort (eDP), Panel Replay incorporates a partial update feature that enables the system video processor, or GPU, to update only the portion of the display that has changed since the video frame update, thus saving system power. Advantages include the ability to recharge a device more quickly while at the same time using it.



VESA Publishes DisplayPort 2.0 Standard - Support for Beyond-8K & Higher Refresh Rates




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vdelvec
Senior Member



Posts: 154
Joined: 2015-09-25

#5684718 Posted on: 06/26/2019 08:19 PM
Why not just make a "DisplayPort ∞" standard where there is no bandwidth max? That'll solve all our problems.

The Reeferman
Member



Posts: 92
Joined: 2013-11-10

#5684721 Posted on: 06/26/2019 08:28 PM
Why not just make a "DisplayPort ∞" standard where there is no bandwidth max? That'll solve all our problems.


Because that wouldn't be a standard.

Prince Valiant
Senior Member



Posts: 693
Joined: 2014-02-23

#5684748 Posted on: 06/26/2019 09:53 PM
Excellent news :D.

DmitryKo
Senior Member



Posts: 263
Joined: 2011-08-08

#5684760 Posted on: 06/26/2019 10:39 PM
So they took the 4-lane ThunderBolt3 40GBit/s PHY (does it actually run at PCIe 3.0 x4 rate of 32 Gbit/s, with 8b/10b channel coding overhead?)
AND
tweaked it to run at 80 Gbit/s (77.57 Gbit/s if you consider 128b/132b channel coding) mode on either the 4-lane DisplayPort 2.0 connector or the 4-lane USB-C connector, which mode I assume will also be implemented as ThunderBolt4/USB5 going forward.

Anyone still afraid of PCIe 6.0?

Alessio1989
Senior Member



Posts: 1407
Joined: 2015-06-11

#5684772 Posted on: 06/26/2019 11:44 PM
Preparing pop-corn for those having a resolution over 16K dealing with winapi...
Hint for thos ignoring this: search for D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION... same apply for D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION too...

yasamoka
Senior Member



Posts: 4730
Joined: 2009-08-29

#5684775 Posted on: 06/27/2019 12:01 AM
Why not just make a "DisplayPort ∞" standard where there is no bandwidth max? That'll solve all our problems.

what ...

Alessio1989
Senior Member



Posts: 1407
Joined: 2015-06-11

#5684776 Posted on: 06/27/2019 12:03 AM
Why not just make a "DisplayPort ∞" standard where there is no bandwidth max? That'll solve all our problems.

All the wizards were caught and mantained in captivity by Apple.

deusex
Senior Member



Posts: 539
Joined: 2003-11-19

#5684782 Posted on: 06/27/2019 12:48 AM
question is, when will we see monitors using DP 2.0?

Prince Valiant
Senior Member



Posts: 693
Joined: 2014-02-23

#5684795 Posted on: 06/27/2019 03:08 AM
question is, when will we see monitors using DP 2.0?

Late next year according to the article. Hopefully it'll end up being sooner.

anticupidon
Senior Member



Posts: 4146
Joined: 2008-03-06

#5684836 Posted on: 06/27/2019 06:49 AM
What about GPUs, I assume that this is a hardware implementation baked into the silicon and instructions.
So Navi will not have it, maybe the next Nvidia or Navi refresh could theoretically have the DO 2.0
Can anyone chime in and share their knowledge about this ?

Spider4423
Member



Posts: 62
Joined: 2008-01-30

#5684889 Posted on: 06/27/2019 10:43 AM
What about GPUs, I assume that this is a hardware implementation baked into the silicon and instructions.
So Navi will not have it, maybe the next Nvidia or Navi refresh could theoretically have the DO 2.0
Can anyone chime in and share their knowledge about this ?

Best that you read the entire article mate.

"First products incorporating DP 2.0 are projected to appear on the market by late 2020."

fantaskarsef
Senior Member



Posts: 11021
Joined: 2014-07-21

#5684891 Posted on: 06/27/2019 10:48 AM
The question is also, why put that on a GPU that can't drive said resolution / refresh rate? I honestly doubt we need that bandwidth right now...
I guess at least they think ahead.

nizzen
Senior Member



Posts: 799
Joined: 2005-08-05

#5684898 Posted on: 06/27/2019 11:22 AM
The question is also, why put that on a GPU that can't drive said resolution / refresh rate? I honestly doubt we need that bandwidth right now...
I guess at least they think ahead.
We needed higher bandwidth 6 months ago.

Asus pg27uq 4k 144hz is nerfed and my lg950-f is nerfed. 144hz 3440x1440 10 bit is not possible with 4-4-4 "color"

anticupidon
Senior Member



Posts: 4146
Joined: 2008-03-06

#5684902 Posted on: 06/27/2019 11:36 AM
Best that you read the entire article mate.

"First products incorporating DP 2.0 are projected to appear on the market by late 2020."

Yes, it was written right there all the time.
Hurry-reading is one nasty habit.

Ricepudding
Senior Member



Posts: 492
Joined: 2017-02-17

#5684908 Posted on: 06/27/2019 11:46 AM
The question is also, why put that on a GPU that can't drive said resolution / refresh rate? I honestly doubt we need that bandwidth right now...
I guess at least they think ahead.

Well DP1.4 reached its limit right? the asus 4k 144hz hdr monitor can't run without some form of compression, bit loss or only in SDR mode... With this (and the right gpu) you could run up to 240hz 4k hdr 4:4:4 12 bit with no compression.... I know GPU standards aren't there yet, but 1.4 was limited to 97hz if you wanted to keep 12 bit hdr, 4:4:4 on, which kinda defeated the point of that monitor in my eyes.

Like i get what you're saying but cables have become a bandwidth issue till HDMI2.1 and DP 2.0 comes out, then we should be fine for a bit longer :P least till high refresh rate 8k comes out... but we got a good time before then i reckon

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