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Examples of devices that support DisplayPort Alternate Mode over USB-C include: MacBook, Chromebook Pixel, Surface Book 2, Samsung Galaxy Tab S4, iPad Pro (3rd generation), iPhone 15/ 15 Pro, HTC 10/ U Ultra/ U11/ U12+, Huawei Mate 10/ 20/ 30, LG V20/ V30/ V40*/ V50, OnePlus 7 and newer, ROG Phone, Samsung Galaxy S8 and newer, Nintendo Switch, Sony Xperia 1/ 5 etc. [114] [115] Participating companies [ edit ] Additional benefits include support for Dual-mode for DVI and HDMI, making it possible to connect a DisplayPort 1.4 device to an HDMI 2.0 source or vice versa. It also includes better support for HDR10 metadata and forward error correction for a noiseless transmission. The DisplayPort standard does not specify any maximum length for cables, though the DisplayPort 1.2 standard does set a minimum requirement that all cables up to 2 meters in length must support HBR2 speeds (21.6 Gbit/s), and all cables of any length must support RBR speeds (6.48 Gbit/s). [37] :§5.7.1, §4.1 Cables longer than 2 meters may or may not support HBR/HBR2 speeds, and cables of any length may or may not support HBR3 speeds or above. So, if you’re looking at a pair of connectors on your display or device and wondering who comes out on top in a head-to-head of DisplayPort 1.4 vs. HDMI 2.1, here’s everything you need to know. Shop DisplayPort 1.4 and HDMI 2.1 As noted above, DisplayPort 1.4 is one of the newer iterations out there. Plus, it’s also one of the readily-available standards. A DisplayPort 1.4 cable should be able to push the transmission of 25.92 Gbps in theory. This jump in transmission speed allows 8K resolution at 60Hz or 4K at 120Hz in DisplayPort 1.4, provided it’s hooked to the right GPU and monitor.
DisplayPort cables have offered broad and impressive bandwidth for data transmission since their first iteration, which is only improved in successive generations. Kowaliski, Cyril (4 May 2006). "DisplayPort 1.0 approved by VESA". www.techreport.com. The Tech Report . Retrieved 1 May 2018. VESA Strengthens 8K Video Resolution Ecosystem with Market-ready DP8K Certified DisplayPort Cables". Video Electronics Standards Association (VESA). 3 January 2018. Archived from the original on 14 May 2018 . Retrieved 14 May 2018.DisplayPort 2.1 has tightened its alignment with the USB Type-C specification as well as the USB4 PHY specification to facilitate a common PHY servicing both DisplayPort and USB4. In addition, DisplayPort 2.1 has added a new DisplayPort bandwidth management feature to enable DisplayPort tunneling to coexist with other I/O data traffic more efficiently over the USB4 link.
VESA Highlights Growing DisplayPort Alt Mode Adoption and Latest DisplayPort Developments at Mobile World Congress". VESA - Another significant improvement with DisplayPort 1.4 was on the audio front, where it moved from a maximum audio sample rate of 768kHz to 1,536kHz. It also increased the maximum number of audio channels from 8 to 32.
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The transmission mode used by the DisplayPort main link is negotiated by the source and sink device when a connection is made, through a process called Link Training. This process determines the maximum possible speed of the connection. If the quality of the DisplayPort cable is insufficient to reliably handle HBR2 speeds for example, the DisplayPort devices will detect this and switch down to a lower mode to maintain a stable connection. [8] :§2.1.1 The link can be re-negotiated at any time if a loss of synchronization is detected. [8] :§1.7.3
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