Following the amendment to the new HDMI 2.1a standard and allowing a new way to send power through the lead, the end of the cumbersome cable trials for home cinema enthusiasts may be seen.
Until now, those with passive cables longer than 3m / 10ft from their TVs or receivers often experienced signal attenuation or stability issues when viewing high bandwidth HDMI 2.1 content.
For those looking to see the full 48Gbps of content of the Ultra High Speed-rated cable – the only options – consider movies featuring Dolby Vision and Dolby Atmos in TrueHD or 8K content – rigging an active HDMI 2.1 cable powered independently of one another. Attached cable.
All changes with the new HDMI 2.1a Amendment 1 specification released yesterday by the certification body HDMI Licensing.
The revision includes a feature called “Cable Power”, which allows source devices such as game consoles and streaming boxes to provide additional power, allowing longer HDMI cables to handle a stronger signal.
Both cable and source devices must support cable power to work and you must also ensure that your cable is plugged in the correct way as the feature only works in one direction.
For those who are worried about not being able to use their current hardware feature, the good news is that cable power compatible cables are set to provide optional USB Micro-B or Type-C connectors for source devices that allow them to use them. Extra energy becomes available.
The bad news is that the feature seems to require special chips on the source devices to work, which means it is unlikely that your current gear will be compatible with the firmware update.
But if you want to use one of the best AV receivers in a room to provide video for the collection of 4K TVs and 8K TVs, it means that you are stretched more than 10 feet across the house.
Analysis: Another large barrier was demolished for 8K and 120Hz
From rich, uncompressed 4K Blu-ray movies, to faster frames and Sonic Majesty’s Dolby Atmos in TrueHD, we’ve been highlighting the game-changing benefits of HDMI 2.1 on TechRadar for a while.
If you have a direct TV or PC setup, that goodness is easy to tap into, but if you need to keep your hardware further away from your display – especially those that use projectors – you are less likely to sink completely. 48Gbps cables have been opened to the world.
With 8K video and 4K 120Hz gaming now entering the mainstream and placing more demands on bandwidth, the new power cable feature is very timely.
The only real downside to the news is the possibility that new hardware will be needed to reap the benefits that HDMI 2.1a and cable power bring, implementing cable setups with news that next-generation console owners are looking to experience more frame-rated gaming. But the long-rumored PS5 Pro can add this feature to the standard.