At the DisplayPort booth in the IDF Thunderbolt Community, attendees were able to see, for the first time, multiple DisplayPort monitors driven from a single Thunderbolt 2.0 output and a 4K x 2K monitor driven at 60Hz from a single Thunderbolt output. DisplayPort 1.2, including HBR2 and multi-stream, is a new capability supported by Thunderbolt 2.0, which Intel introduced at IDF.
Only DisplayPort can offer this capability from a single display interface, the common configuration of laptops and many desktop systems. A desktop system configured with one or more GPU cards can accommodate three or more monitors using VGA, DVI or HDMI connectors. This feature requires DisplayPort multi-steam capability, daisy-chainable monitors or a multi-stream hub, which are becoming available. A dedicated desktop system is no longer needed as gaming laptops provide sufficient power.
Yes, you are correct that the 4K at 60Hz DP monitors now on the market require a multi-stream enabled DisplayPort output, because these use two display processors. Some future 4K at 60Hz monitors might accept a single stream and not require multi-stream, but will still require the higher HBR2 interface rate of DisplayPort 1.2 enabled Source devices.
Hi NLPsajeeth, thanks for the comment! Assuming that you have a multi-stream enabled DisplayPort output, you can connect the laptop to multiple external 1080p monitors. But the number of monitors that you can connect, in addition to running you laptop display, will be governed by which GPU you are using.
Hi Max Volume, the Google Nexus 7 is currently the only phone on the market currently featuring MyDP. We expect to see more devices, both phones and tablets, appear in 2013 with MyDP support.
Hi E90driver, great question! The DisplayPort MST at HBR2 (5.4Gbps/lane) over 4 lanes provides for sufficient transport bandwidth for two to three 1080p 120Hz RGB streams. So, the MST Hub can be built to handle two to three 1080p monitors at 120Hz. Please let us know if you have any other questions.
YCbCr is really just a form of image compression, and an easier way to provide backward compatibility with monochrome displays. For a video interface, the YCbCr format can be an effective means to increase pixel density, but again this mostly only works with natural images and not computer graphics. YCbCr is more commonly used for television (where we tend to watch natural images) and not personal computers where we tend to stare at a lot of graphics data close to our screen.
Thanks for the question. We expect hubs supporting DisplayPort 1.2 with HBR2 to be available by the end of this year. While we don't sell end products, you can find all the latest certified products from our members on our product page.
Currently, content for 4Kx2K is very limited, but it is expected to grow as this resolution is more widely adopted. For more common high resolution displays like 2560x1600, the refresh rate using DisplayPort is 120Hz with 30 bit color.
Thanks for the question! the hub in this video is not a multi-stream hub. With a DisplayPort v1.2 multi-stream hub, the image would appear as individual displays unless you go into your control panel settings and change it to extended desktop across all displays.
DisplayPort enabled projectors can be found on our products database page on our website.