China launches HDMI and DisplayPort alternative — GPMI boasts up to 192 Gbps bandwidth, 480W power delivery
China launches HDMI and DisplayPort alternative — GPMI boasts up to 192 Gbps bandwidth, 480W power delivery
Why not use the already open displayPort and make it better.
Lock-in.
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.
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.
I think it's aimed at TVs in general, not computer monitors. Many people mount their TVs to the wall, and having a single cable to run hidden in the wall would be awesome.
I wonder what the use case is for 480W though. Gigantic 80" screens generally draw something like 120W. If you're going bigger than that, I would think the mounting/installation would require enough hardware and labor that running out a normal outlet/receptacle would be trivial.
In wall power cables need to be rated for it to prevent fire risks. This will need to have thick insulation or be made of a fire resistant material.
Even in that scenario it will complicate the setup. Now your Roku will also have to power your TV? No, any sane setup will have a separate power cable for the TV.
The popular use for power delivery through a display cable is charging a laptop from your monitor; it's already very common with Thunderbolt or USB-4 monitors. But 480W seems a bit overkill for that.
It would just put extra thermal load on the GPU.
Passing power through doesn't have to put noticeable load on the GPU. The main problem I see there is getting even more power to the GPU - Nvidia's top cards are already at the melting point for their power connector.
Nah, it's for powering the 1000w RTX 6090.
~~Why is that better than usb-c? ~~
Wait... Power the other way. Whoops, I get it.
That already kinda allow this and the actual load is pretty small
Even a big 30 in display is maybe 20 watts
Well, power delivery goes several times that. Laptops are another very useful case for it. It's nice to be able to just have a single display port and power connector
You can do this to an extent, today
Today I learned DidplayPort 2.1 can carry 240W.
That's a lot of power! Are there even any devices that use this?
PCs can use >1KW.
I don't know why you'd power a PC over DisplayPort though. New 8k monitors do go up to 190W, so we could exceed 240W if we try hard enough.
Monitors, although I'm not sure I want my PC PSU powering those as well as everything else.
They fixed it.
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.
It's likely dc current which without the alternating magnetic fields will not degrade the signal as bad. But I whole heartedly agree with you on power delivery. What could possibly need/use that much power‽
The option to run one cable to the monitor, or reversely charge your laptop with one docking cable.
Maybe you could use this to daisy chain monitors and power them all.
Bigass showroom screens I suppose? Maybe large sound systems?
Displayport and hdmi are either twisted pair or coaxial I think. Low frequency RF from 50hz AC shouldn't interfere with them, but high frequency changes in current on a power wire will.
its super nice to plug a laptop into a screen and have the cable double as a charging cable for the laptop
See, IDK anything about data and power and cables but I dislike the vibe when I dock my laptop with that itty bitty USB-C connector that does power and 2x monitors and networking and peripherals.
I did buy the bonkers expensive proper cable from lenovo, and it does generally just work, but maybe once every few weeks I have to unplug & re-plug.
More power and more data through the same cable just seems daft.
Loved automobiles with 4 wheels? Chinese cars have 13! In your face suckers!
Imagine putting out a new high bandwidth cable standard in 2025 based on copper.
The sooner display and networking move to SFP, the better.
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.
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.
Not really that impressive since it seems to be about four times as wide as USB-C
So is HDMI? Smaller connectors aren't always better, and it's not like it's SCART size or something.
Even an 80” tv only uses around 150W, if my research is correct. Surely this must be thinking about massive displays.
Won't this heat up like a mother fucker
It depends on the voltage used. If they run 48V which seems to be supported by USB-C EPR. Then the cable has to do the same 5A it's capable of doing today. Then the heat is the same.
When it comes to their own new connector/cable they can use even higher voltage or more/thicker conductors for power.
If it’s physically more stable and reliable than HDMI, then count me in
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.
We already have alternative, it’s called thunderbolt port.
No, we don't. Apple proprietary nonsense isn't worth the metal it's made of.
I usually associate it more with Intel since they certify Thunderbolt devices on all the non-Apple hardware and that's all I use. I forgot Apple had anything to do with it.
If it's not usb-c it's banned in EU. Because we stopped there and we won't go forward.
the GPMI cable comes in two flavors — a Type-B that seems to have a proprietary connector and a Type-C that is compatible with the USB-C standard
I actually copied this from the article to come here to the comments and have a whinge about all the different USB-C standards, and here you are explaining the reason why.
The whole point of USB-C is that it's a standardised connector that allows anyone to shoehorn their own protocol down it if they want using Alt Mode. Moreover, they can do that without breaking compatibility with other USB-C - or even just specific features - if one of the devices doesn't speak their crazy-ass moon protocols. This is a benefit of USB-C, not a failing.
Don't get so excited. Read my comment again.
In case anyone is wondering, yes, this is utter nonsense. The EU made USB-C mandatory only as a charger for portable devices like phones, tablets, headphones and mice. That's all. This new standard, unwelcome as it is, has nothing to do with charging phones so there's no reason why it can't be used in the EU.
But let's not allow measley facts get in the way of having a moan at nothing, shall we? Fucking EU. Forcing us to [checks notes] charge all out things using a single connector, reducing e-waste, and, uh, ensuring there's lots of futureproofing built-in. BASTARDS.
Please don't make stuff up.
Other stuff isn't banned and the law already has allowances for emerging standards.
I think you could have a second connector in addition to a main USBC.
Honestly we need higher capacity for screen cables for PC. Both HDMI and display port are limiting performance because of their low, 40-80gbps, bandwidth. Their performance maxes out at 4k120hz with uncompressed HDR color. You can't use 8k screens or multiple 4k screens without lowering quality.
Is it an open standard?
To quote the article:
So its half proprietary. No thanks!
Half-owned by a Chinese company is wholly owned by the CCP
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