this post was submitted on 07 Apr 2025

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358

China launches HDMI and DisplayPort alternative — GPMI boasts up to 192 Gbps bandwidth, 480W power delivery (www.tomshardware.com)

submitted 1 day ago by schizoidman@lemm.ee to c/technology@lemmy.world

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[–] humanspiral@lemmy.ca 3 points 5 hours ago

Power delivery by itself could be a useful standard for ebike and power station charging (battery to battery charging too). 480w is most I've seen, but maybe USB is working on better, or 240w and more flexible/cheaper cables can work. HDMI providing 54v output would be great for most common battery system charging, and dual/triple BMSs for 2x and 3x ports/charging would be awesome.

[–] UltraBlack@lemmy.world 14 points 12 hours ago (1 children)

Not really that impressive since it seems to be about four times as wide as USB-C

[–] princessnorah@lemmy.blahaj.zone 6 points 8 hours ago

So is HDMI? Smaller connectors aren't always better, and it's not like it's SCART size or something.

[–] flemtone@lemmy.world 94 points 1 day ago (3 children)

Why not use the already open displayPort and make it better.

[–] nickwitha_k@lemmy.sdf.org 2 points 4 hours ago

Displayport is an open standard in name only. The specs require membership in VESA, something that requires a hefty sum of money. Even open-source projects have to restrict code that implements Displayport because of the licensing restrictions imposed on the "open" standard.

[–] glowing_hans@sopuli.xyz 60 points 21 hours ago (1 children)

noo we need yet another standard!

[–] bfg9k@lemmy.world 68 points 16 hours ago (1 children)

[–] tedvdb@feddit.nl 8 points 14 hours ago

This was exactly what I wanted to post... 😅

[–] sugar_in_your_tea@sh.itjust.works 14 points 21 hours ago

Lock-in.

[–] werefreeatlast@lemmy.world 27 points 23 hours ago

Loved automobiles with 4 wheels? Chinese cars have 13! In your face suckers!

[–] Dojan@pawb.social 169 points 1 day ago (2 children)

Is it an open standard?

[–] glowing_hans@sopuli.xyz 67 points 21 hours ago (1 children)

To quote the article:

a Type-B that seems to have a proprietary connector and a Type-C that is compatible with the USB-C standard.

So its half proprietary. No thanks!

[–] FenrirIII@lemmy.world 6 points 6 hours ago

Half-owned by a Chinese company is wholly owned by the CCP

[–] muntedcrocodile@lemm.ee 58 points 1 day ago

Most important question

[–] helpImTrappedOnline@lemmy.world 57 points 1 day ago (1 children)

Relevant xkcd

[–] SharkAttak@kbin.melroy.org 15 points 22 hours ago

Thought of this too, with the addition "so we can control that market".

[–] ShinkanTrain@lemmy.ml 49 points 1 day ago (14 children)

Today I learned DidplayPort 2.1 can carry 240W.

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[–] drspod@lemmy.ml 63 points 1 day ago (17 children)

This must be for commercial displays where it is beneficial for installation to have power and data over a single cable.

I can't think why I would want power delivery to my PC monitor over the display cable. It would just put extra thermal load on the GPU.

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[–] jlh@lemmy.jlh.name 21 points 1 day ago* (last edited 1 day ago) (1 children)

Imagine putting out a new high bandwidth cable standard in 2025 based on copper.

The sooner display and networking move to SFP, the better.

[–] cmhe@lemmy.world 5 points 11 hours ago (1 children)

SFP? You mean the every device has slots to plug in different transceiver modules? I guess that would make it more future proof, but I think that will raise the cost, and might confuse ordinary people.

You have to think about the slot-transceiver compatibility and transceiver-medium compatibility then. Hmm... but I guess that would make it more transparent what is going on than having those chips embedded inside the cables, but not sure if we can leave them out, and require the end users to take care of thinking of all these compatibilities themselves or risk fire hazards.

[–] jlh@lemmy.jlh.name 3 points 9 hours ago* (last edited 8 hours ago) (1 children)

yeah, I guess tvs and receivers would come with active optical cables to make it simpler, but the main thing is that optical is much cheaper and faster than copper once you get the economies of scale down on the transceivers. 1 terabit over 100km, down a cable thinner than a USB cable, is no problem with the right lasers. Meanwhile, I have interference and patent issues at 0.02tbps on hdmi cables less than a meter long.

Plenty of cheap optical HDMI cables out there, but they have compatibility issues. It would be so much easier with standard mmf mpo or SMF lc cables.

apalrd did review a unique product recently that embeds a mmf transceiver into the existing HDMI for factor, though.

https://youtu.be/1aIK01S5qa4

[–] cmhe@lemmy.world 1 points 5 hours ago* (last edited 5 hours ago)

I think you are mixing up SFP and optical fiber. SFP modules with copper wires exist, and are common. (e.g. SFP 1000base-T modules)

You can also use optical fiber without SFP, like the toslink connection.

Optical fiber also has issues with requiring a larger minimal bend radius, because they easily break. So you have to handle them more carefully.

[–] Funwayguy@lemmy.world 38 points 1 day ago (14 children)

Running that much power next to a data line sounds like a terrible idea for signal integrity, especially if something shorts to said data lines. It just sounds sketchy or filled with so many asterisks that it's functional impossible to reach their claimed throughput.

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