Daisy-chain:Monitors are connected in series. Allmonitorsneed to be daisy-chain compatible, except the last. A: The DP Hub will support between 1 and 3 displays from a single source DisplayPort connection. The DP Hub has a maximum number of monitors supported based on the video card it is attached to. Example: Your video card supports 2 monitors - the DP Hub will only extend to 2 monitors and not 3. With the updates to DP 2.1 made on 17 Oct 2022 VESA have also updated the DisplayPort cable specification to provide greater robustness and enhancements to full-size and Mini DisplayPort cable configurations that enable improved connectivity and longer cable lengths (beyond two meters for DP40 cables and beyond one meter for DP80 cables) without diminishing UHBR performance. What if your cable isn’t good enough and isn’t DP40 or DP80 certified? VESA make the point that there is no need for manufacturers to have a higher price point because of the additional silicon needed to support UHBR, if the device simply does not need that. That’s true, but we believe that DP 2.1 is so clearly positioned as offering new UHBR speeds everywhere you look, making this optional could (and will) lead to confusion. In our opinion, UHBR should be a requirement, and manufacturers should have to list the UHBR speed alongside the DP 2.1 branding. Other DisplayPort 2.1 Features Two 4Kx4K (4096×4096) displays (for AR/VR headsets) @120Hz and 30 bpp (10-bit) 4:4:4 HDR (with DSC)

Support for 8K resolution (7680 x 4320) at 60Hz refresh rate with full 4:4:4 chroma and 10-bit colour depth for HDRIf, as VESA tell us, the UHBR aspect is basically optional, this means that in theory you could have a device certified as DP 2.1 when it doesn’t even include UHBR speeds of any sort! What if a manufacturer instead provided DSC like they have to as a baseline, and then added AdaptiveSync or LTTPRs, but didn’t bother with UHBR? That would still pass DP 2.1 criteria apparently, but you’d never actually get the new UHBR speeds. The device could still only support older HBR3 speeds from DP 1.4. The best part about DisplayPort connections is that the higher bandwidth ensures almost no compression, especially when it comes to high-resolution content.

H.E. stands for Home Entertainment. These devices can include TVs, DVD players, set-top boxes (cable, satellite, etc) and video game consoles. DisplayPort Dongles: A: The DP Hub itself does not require a separate driver. The only driver you need for proper functionality is your graphics card driver.

Features

This new interface is designed to work along side of the proprietary digital visual interface (DVI) used between the personal computer and an external display, as well as the legacy low-voltage differential signaling (LVDS) interface used inside laptops, monitors, and TVs to connect to LCD panels. As DisplayPort becomes more readily available, eventually it replaces VGA, DVI, and LVDS as the display interface standard. DisplayPort over USB-C has many advantages over DisplayPort and its primary competitors. These advantages include increased convenience, versatility, functionality, and multi-display streaming. Convenience The DisplayPort 2.1 UHBR certification programme was launched in February 2022. Through the DisplayPort UHBR Certification Program, device and cable manufacturers can send new products to DisplayPort authorized test centers (ATCs) for testing and certification In older DP versions 1.0 to 1.4a, the data is encoded using ANSI8b/10b encodingprior to transmission (also listed as 810 Mhz). With this scheme, only 8 out of every 10 transmitted bits represent data; the extra bits are used for DC balancing (ensuring a roughly equal number of 1s and 0s). As a result, the rate at which data can be transmitted is only 80% of the physical bitrate. This is why the data rate of DP 1.4 is 25.92 Gbps, whereas the bandwidth total is 32.40 Gbps (=80% usage).

This is how (mainly) TVs are able to access HD sound and visuals and is done through the use of just one simple HDMI cable. What Is DisplayPort? Now you need not be restricted with an integrated screen of your laptop. With this 1×4 DisplayPort 1.2 MST hub, you can connect a maximum of 4 independent screens at once to your desktop. Alternatively, you can connect 4 independent monitors to a DisplayPort enabled PC/laptop/Ultrabook and benefit from multitasking. HDMI 2.1 can reliably run 4K resolutions at 60Hz, as can the DP 2.0 standard. However, beyond 4K, things change. While HDMI 2.1 can support 8K at 60Hz, DisplayPort can support 8K at a 120Hz refresh rate, or 16K at 60Hz. DisplayPort 2.1 on the other hand uses 128b/132b encoding; each group of 132 transmitted bits represents 128 bits of data. This scheme has a much higher efficiency of 96.96%. In addition, forward error correction (FEC) consumes a small amount of the link bandwidth, resulting in an overall efficiency of ~96.7%. This means that the transferrable data rate can be much closer to the bandwidth capacity of the connection. So for DP 2.1 you get up to 77.37 Gbps data rate out of 80Gbps total bandwidth (=96.7%). An updated version of our earlier table is included below to show the efficiency rate: Transmission mode HDMI does not natively support MST. However, you can use a DisplayPort hub with an HDMI adapter to daisy-chain multiple HDMI monitors through the DisplayPort on your computer.

Products Mentioned in this Article

This hub works perfectly for gaming, graphic design, digital signage applications, and spreadsheet analysis. You can enhance multitasking and boost productivity by configuring this hub to function as a splitter with an identical video image on every display. So, you can extend a video image to multiple displays or expand a video image by connecting multiple monitors in the form of one display. Lightweight, small form factor lets you easily carry it along. Features: Thankfully unlike the mess that the HDMI forum created with HDMI 2.1 where everything could end up being certified as “HDMI 2.1”, VESA will still be certifying devices under the older DisplayPort 1.4, and even DP 1.2, schemes where applicable or required. Not everything is going to be certified as DP 2.1, which would have left consumers to try and figure out which features are really included. If a device only has DP 1.2 or DP 1.4 capabilities, and perhaps only needs those capabilities to support it, then those schemes will continue to be available and certified against. This is definitely good news we think, as it means that when you see DP 2.1 listed, you know it should include that specific newer connection, and will support at least some of the features and capabilities associated with this new generation. However, as you read on, you will see it’s unfortunately not as simple as it perhaps should be… In late 2003, Dell brought together a group of leading personal computer, graphics, and semiconductor companies to plan a new digital display interface standard. The standard had to meet future demands on the interface and had to reduce display cost and complexity. The goal was to develop an open standard based, royalty-free, and extensible interface suited for both external desktop monitor and internal display interfaces. The result of the effort was the open standards-based DisplayPort™ digital display interface. The first clue to a DisplayPort link failure will probably be your monitor switching to low resolution. This mainly affects AMD GPUs and usually occurs after waking your computer and monitor from sleep. Allows multiple display video signals to be transmitted through a single DisplayPort (DP) cable in one of two configurations:

VESA also say you can visit https://www.displayport.org/products-database/ for the latest list of VESA certified DisplayPort products, although this list isn’t clear which DP version or certification they are certified against or any of the capabilities it might have. What to Look Out for When a Screen is Listed as Having DisplayPort 2.1The following quotes were from earlier in 2022 before the DP 2.1 update was announced on 17 Oct 2022 This means that while products may be certified against different DP generations (1.2, 1.4 and 2.0) and should therefore include that version listed in their specification, there is only one single DisplayPort logo available. As such, the logo on its own doesn’t really mean much or tell you anything about the device’s capabilities other than that it simply has a DP connection of some sort. You will need to refer to the spec sheet to identify the specific DP version being used, along with any of the features you may want to use. HBR2(High Bit Rate 2): 5.40Gbit/s bandwidth per lane (540MHz link symbol rate), introduced in DP1.2 When using only two lanes on the USB-C connector via DP Alt Mode to allow for simultaneous SuperSpeed USB data and video, DP 2.1 can enable such configurations as: