this post was submitted on 06 Jan 2025
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The HDMI Forum is using CES — the annual showcase of all things home theater — to announce the new HDMI 2.2 specification. In a press release this morning, the trade association confirmed that the new spec will up total bandwidth significantly to a new high of 96Gbps. And yes, that means the introduction of an “Ultra96” HDMI cable that “enables all the HDMI 2.2 specification features.”

“Higher resolutions and refresh rates will be supported and more high-quality options will be provided,” the HDMI Forum said in its release. An example of an HDMI 2.2 cable (below) calls out some of those, including 4K at up to 480Hz, 8K at up to 240Hz, and 10K at 120Hz. Current HDMI cables can already pass 4K at 120Hz, so I doubt most people will feel any temptation to upgrade for years to come. And you’ll need content for any of these higher resolutions to be worthwhile, and there’s still a dearth of native 8K entertainment out there. 

But with many TVs now offering 4K at up to 144Hz, and as consumers gravitate towards larger screens, the HDMI Forum sees ample reason to keep pushing forward. 

There is at least a more helpful aspect of this spec for everyone: HDMI 2.2 includes a “Latency Indication Protocol (LIP) for improving audio and video synchronization, especially for multiple-hop system configurations such as those with an audio video receiver or soundbar.” In my experience, HDMI 2.1 and eARC have mostly resolved frustrating audio / video sync issues, but they can still pop up as a frustration depending on your setup. Apparently HDMI 2.2 will go further in keeping everything lined up and keeping this headache in the past.

Interestingly, the HDMI Forum is already anticipating tariff issues and has implemented an extensive certification program that includes anti-counterfeit labeling on packaging. You certainly can’t miss the Ultra96 badging.

HDMI 2.2 will be released in the first half of this year and be widely available “to all HDMI 2.x adopters.” Your TV and external devices will need to support the specification in order to unlock that new level of bandwidth, so we’re just starting down what’s inevitably going to be a long road.

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[–] daggermoon@lemmy.world 10 points 8 hours ago

DisplayPort better

[–] Tuxman@sh.itjust.works 6 points 8 hours ago

Can we just completely drop HDCP so I can make things work together without having to burn incense and make a sacrifice to the Tech gods?!

[–] Jimmycakes@lemmy.world 3 points 9 hours ago

Us: please increase the audio on dialogue

Them: 96gbps hdmi max infinity audio sync!!!!!

[–] stardom8048@lemmy.world 6 points 13 hours ago (1 children)

Can anyone ELI5 how we are able to release new standards all the time? Are there technological advances that allow more bandwidth? If not, why not start with higher bandwidth?

[–] frezik@midwest.social 10 points 13 hours ago (1 children)

Going for higher bandwidth tends to increase signal interference. There are various ways to deal with that, most of which cost money. For example, most high speed data cables use twisted pairs that help cancel out interference. To go faster, the twists need to be tighter, and that's more expensive to make.

If there is no customer demand for those use cases, then there's no reason to force a more expensive cable, connector, or signalling electronics just so you can meet specs.

[–] stardom8048@lemmy.world 4 points 13 hours ago

Makes sense, thanks!

[–] stevedice@sh.itjust.works 132 points 1 day ago (4 children)

Can someone force cable manufacturers to print the bandwidth or at least the version on the fucking cable already?!

[–] Blackmist@feddit.uk 7 points 8 hours ago (1 children)

Why do that when you can just make the same cable you've been selling all along and change the description to "Full HD 1080p 4K 8K 16K 48GBPS 96GPS PlayStation 4 5 6 Switch 2 Xbox Series X S One 360 Male Female HDMI 1.1 1.2 1.3 2.0 2.1 2.2 Cable" on Amazon.

[–] stevedice@sh.itjust.works 3 points 7 hours ago

Yeah, that's why I said somebody needs to force them. Like how food can't say chocolate if it doesn't actually have chocolate.

Sounds like "burdensome regulation" to me.

Communist.

/s

[–] zurohki@aussie.zone 57 points 1 day ago (8 children)

Half of them will print the highest bandwidth regardless of the actual cable's capabilities so that won't help.

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[–] Kbobabob@lemmy.world 13 points 1 day ago* (last edited 1 day ago) (1 children)

They do but probably not in a way that you understand. Instead of the bandwidth which to be honest most people won't know what that means either, they use

STANDARD HDMI CABLE

STANDARD HDMI CABLE WITH ETHERNEiT

HIGH SPEED HDMI CABLE

HIGH SPEED HDMI CABLE WITH ETHERNET

ULTRA HIGH SPEED HDMI CABLE

Each one specifies the standard and is almost always printed on the cable. I can't think of any off the top of my head that wasn't labeled but I'm sure there are and if you don't see it printed on the cable then throw it out.

You can read more about this naming convention here. https://www.cablematters.com/Blog/HDMI/HDMI-cable-types-the-ultimate-guide

[–] stevedice@sh.itjust.works 1 points 7 hours ago

High Speed is the second slowest cable and the slowest one still being sold. Last time I bought an HDMI cable, I didn't even know there was anything slower than 1080p@60hz so I just assumed that was "Standard" and, by buying "High Speed", I was getting something better. Yes, I should have done more research before buying but the point is that calling the slowest cable still being sold "High Speed" is confusing and deceptive. That's why I want them to be forced to label the cables with the bandwidth or version.

[–] stupidcasey@lemmy.world 85 points 1 day ago (14 children)

At this point we should just swing to 10 gbps sfp+ ports, it's faster, it's lower latency, it's upgradable to 100gbps, it travels over fiber, but most importantly, it is a network protocol and we can use it for our Internet.

[–] glimse@lemmy.world 36 points 1 day ago (2 children)

Instead, they're trying to force everything to USB with DP Alt mode which has a ton of the same annoyances...but at least USB C is flippable I guess.

HDMI 2.1 cables have 19 wires and USB 3.2 has 13 or 14 (can't remember) so they're really finicky and fragile. Fiber has 1 or 2 and is VERY rugged in comparison...you can literally tie a knot in a fiber cable and it'll still work.

Plus with fiber, if your AVR blows up, it can't take the other equipment out with it since it's electrically isolated.

Fiber is also cheap cheap cheap!

Fiber is thin and easy to route.

Fiber can ALSO be shortened, extended, etc. in the field.

The only downside is the cost of the splicing tools (and the cleanliness required)

And I guess SFP connectors are pretty gnarly. But if it was aimed at consumers, they could slap a nice rubberized coat on it...

Man, I love fiber.

[–] tyler@programming.dev 22 points 1 day ago (1 children)

Fiber needs like an 8” minimum bend radius… I think that’s for just a single strand.

[–] glimse@lemmy.world 7 points 1 day ago (1 children)

It definitely depends on the application but my instructor showed it to us in training and I replicated it for a tech who wasn't there later

There's also two minimums, one for how much it can bend before the fiber breaks and one (much larger) radius for peak operation. A knot causes optical loss but it still works

[–] MutilationWave@lemmy.world 3 points 22 hours ago (1 children)

Yeah man you can fuck up fiber all kinds of ways and it still works great. Short of intentionally stomping the patch it's fine.

[–] glimse@lemmy.world 2 points 13 hours ago (1 children)

They have cables with harder jackets for racks that I'm sure is what most people are thinking of with the bend radius but yeah...bulk fiber is incredible. The big caveat is temperature... don't pull fiber when it's freezing out.

[–] MutilationWave@lemmy.world 1 points 8 hours ago* (last edited 8 hours ago) (1 children)

Good to know, but I'm lucky in that I only do indoor work. Don't get paid nearly as much but I'm kind of ok with that.

What about leaving fiber in a vehicle when it's freezing out? Should that not be done?

[–] glimse@lemmy.world 2 points 8 hours ago

If it's stationary, the temperature doesn't matter. Well....it probably does at SOME temperature but the issue I'm referring to is flexing the cable when it's brittle.

I moved to the pre-install engineering side of things so I don't have to run it anymore but it was a dream to work with over CAT6A

[–] umami_wasbi@lemmy.ml 9 points 1 day ago (1 children)

Fiber has 1 or 2 and is VERY rugged in comparison...you can literally tie a knot in a fiber cable and it'll still work.

Emm, not with glass fibers. My friend uses it between router and switch, and the one of the fiber breaks. So, traffic can be sent to router but nothing the other way around. He said he didn't even touch or put significant stress on the cable. Yet, it breaks in a weird way, and hard to troubleshot without proper equipment.

[–] MutilationWave@lemmy.world 3 points 22 hours ago

This can happen but it's rare. I've seen fiber tied in tight knots still work.

[–] Zetta@mander.xyz 19 points 1 day ago (1 children)

That would be awesome, but the fucking corpo bullshit cunts need proprietary bullshit cause "piracy"

[–] jlh@lemmy.jlh.name 28 points 1 day ago

I'm still pissed at the HDMI forum for banning Linux from using HDMI 2.1

https://www.phoronix.com/news/HDMI-2.1-OSS-Rejected

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[–] Eezyville@sh.itjust.works 16 points 1 day ago (1 children)

Imagine how large those 10k resolution games are gonna be.

[–] Formesse@lemmy.world 2 points 8 hours ago

Not all that much larger. It's going to be upscalled 1440p textures that look like a smeared mess. But people will eat up the 10k claims.

[–] sic_semper_tyrannis@lemmy.today 43 points 1 day ago (1 children)

Make it work on Linux please

[–] TonyTonyChopper@mander.xyz 68 points 1 day ago (3 children)

The hacker known as Linux has used HDMI to illegally steal movies. It will never be supported. You will never have HDMI 2.1, let alone 2.2

[–] Bad_company_daps@lemmy.ca 4 points 14 hours ago (1 children)

Wait Linux still does not have 2.1 support yet? Hasn't that been around for years at this point? What's been holding it back?

[–] db2@lemmy.world 43 points 1 day ago (2 children)

Guess I'll keep using the superior DP then. 🤷

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[–] pearsaltchocolatebar@discuss.online 25 points 1 day ago* (last edited 1 day ago) (2 children)

What's the real world application of 98Gbps? Based on a quick Google search, 8K doesn't even hit 10Gbps at 480fps.

[–] Kbobabob@lemmy.world 13 points 1 day ago

8K doesn't even hit 10Gbps at 480fps.

That would have to be compressed. 4K@60 is 18Gbps.

[–] Kidplayer_666@lemm.ee 27 points 1 day ago (1 children)

That’s probably compressed, raw sounds impossible to do those

[–] frezik@midwest.social 26 points 1 day ago

Correct. Wikipedia has a complete breakdown of resolutions and speeds with and without compression.

https://en.m.wikipedia.org/wiki/HDMI

See the section Versions -> Refresh frequency limits for standard video.

Then throw in multi displays, either on your desk or in VR. And VR wants very high refresh rates, too. Oh, and 10 bpp encoding for HDR.

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