China Develops HDMI Alternative: 192 Gbps Speeds and 480 W Power Delivery

[Tek-Check]

DP could have taken over but they were too focused on PC when they should have invested in the tech space as a whole, including televisions.

VESA has nothing to do with rejection of DP by a consortium of TV and home theatre companies. It's a corporate behemoth that wanted guarded access to HDMI. It will be over soon.

 

[Random_User]

DP only. Everything else should die. Did we not already learn from all those connectors from television and monitors. LVDS should also die in notebooks.
Did we not learn from scart and televisions that television connections are not really fit for purpose?

Not only this, but the movie-lobby has also pushed (among the other crap, like intrusive DRM HW and standards like HDCP), the garbage aspect ratio, which is useful only for movies.
Otherwise, the gaming industry, could still use the 16:10 perfectly fine. More visible area is always good (not bad like many "gamurs" claim to be). And Ultra-wide could be XX:10 as well. But ignorance is a bliss...

 

[close]

Which hasn't happened. Do try to educate yourself before spreading FUD.

Is there even any mention of voltages over this new standard? If this is a superset of the USB PD it could go well above the current 48V to keep the same current and wire thickness. Although they should go in the ~90V range to get to 480W.

 

[yfn_ratchet]

A consortium of over 50 Chinese companies, including names like Huawei, Hisense, and TCL, has unveiled a domestic alternative to HDMI
Primarily developed for the domestic market, GPMI also aims to reduce China's dependence on Western-controlled standards and licensing regimes.

The specs don't matter. I'm going to go out on a limb and say they're LYING about the capability of this standard in some way, shape, or form. What this is, is China attempting to gain leverage over "western" (USA) trade. This is all GPMI is meant to be, when you boil it down. The only way I see this gaining adoption a little easier is if it piggybacks off of USB-DP, which is ironic given GPMI's goals.

In other news, XKCD just violently sneezed.

 

[Tek-Check]

The specs don't matter. I'm going to go out on a limb and say they're LYING about the capability of this standard in some way, shape, or form. What this is, is China attempting to gain leverage over "western" (USA) trade. This is all GPMI is meant to be, when you boil it down. The only way I see this gaining adoption a little easier is if it piggybacks off of USB-DP, which is ironic given GPMI's goals.

In other news, XKCD just violently sneezed.

Nonsense. They have already officially certified USB-C part of the spec with USBIF, so all devices with it will have global compatibility, and with higher speed on those devices that need it, such as 8K gear.

The second part, USB-B, is pushing the leadership in connectivity. Why not? It's not only the West that has the right to push new technologies.

It wouldn't be the first time or even the last time that the longest surviving advanced civilization in the history of humanity could do something similar.

 

[nageme]

I'm totally sick of seeing HDMI ports dominate PC video, DP is way better IMO.

AFAIK, DisplayPort doesn't really do long cables.

 

[yfn_ratchet]

AFAIK, DisplayPort doesn't really do long cables.

No, there's a couple active/optical DP cables out there, a lot more if you include USB-C format. Cables in that category only go up to about DP1.4/HBR3, though. Still, that's enough for 8K60.

 

[95Viper]

Let's not derail the thread.
Stay on topic.

 

[Crackong]

Clearly, it doesn't. USBIF certified their USB-C part of the spec at 96 Gbps and 240W, which is half of capability of its bigger brother USB-B. Here are some prototypes.
View attachment 393810

192Gbps and 480W isn't practical for such a slim cable to be used externally, it will lose signal integrity / catch fire after a few usage.

This type B connector is meant to be used internally within a product, very short, fixed cables for pcb connections.

For us the consumer, the Type-C connector is what we will see on a device, externally.

And USB-C already does it all.
It is just another wheel re-invention.

 

[zzd911]

192Gbps and 480W isn't practical for such a slim cable to be used externally, it will lose signal integrity / catch fire after a few usage.

This type B connector is meant to be used internally within a product, very short, fixed cables for pcb connections.

For us the consumer, the Type-C connector is what we will see on a device, externally.

And USB-C already does it all.
It is just another wheel re-invention.

You are right, but consumer can find a 480Mbps type-c cable everywhere, I think it's invention even only print "for 4k30hz video" on connecter.

 

[Tek-Check]

192Gbps and 480W isn't practical for such a slim cable to be used externally, it will lose signal integrity / catch fire after a few usage.
This type B connector is meant to be used internally within a product, very short, fixed cables for pcb connections.

Nope. It looks like a proper cable connecting devices.

 

[TheinsanegamerN]

192Gbps and 480W isn't practical for such a slim cable to be used externally, it will lose signal integrity / catch fire after a few usage.

This type B connector is meant to be used internally within a product, very short, fixed cables for pcb connections.

For us the consumer, the Type-C connector is what we will see on a device, externally.

And USB-C already does it all.
It is just another wheel re-invention.

Amperage is what generates heat. If you double the voltage but keep the amperage the same, you can effectively double the power capacity. So long as the cables resistance is low enough this won't be an issue.

 

[TheLostSwede]

Some more details here:

GPMI is a Chinese alternative to HDMI and DisplayPort with up to 192 Gbps bandwidth, 480W Power Delivery - CNX Software

Defined by the Shenzhen 8K UHD Video Industry Cooperation Alliance (SUCA), GPMI (General Purpose Media Interface) is an alternative to HDMI and

www.cnx-software.com

Someone over there commented about the power delivery part and it doesn't look very well thought out, nor finalised. We're getting to a point where this could kill someone if something goes wrong.

 

[Apocalypsee]

Some more details here:

GPMI is a Chinese alternative to HDMI and DisplayPort with up to 192 Gbps bandwidth, 480W Power Delivery - CNX Software

Defined by the Shenzhen 8K UHD Video Industry Cooperation Alliance (SUCA), GPMI (General Purpose Media Interface) is an alternative to HDMI and

www.cnx-software.com

View attachment 393941
Someone over there commented about the power delivery part and it doesn't look very well thought out, nor finalised. We're getting to a point where this could kill someone if something goes wrong.

View attachment 393942

480W via 48V DC? What is common about 48V? DisplayPort and HDMI are on 3.3V and/or 5V only. That requires extensive power delivery on host device, I know where they are going with this, so the display itself, or any other devices that connects to it, doesn't require its own power supply. But using the thin gauge wire to deliver those power? Nah...

 

[Assimilator]

480W via 48V DC? What is common about 48V? DisplayPort and HDMI are on 3.3V and/or 5V only. That requires extensive power delivery on host device, I know where they are going with this, so the display itself, or any other devices that connects to it, doesn't require its own power supply. But using the thin gauge wire to deliver those power? Nah...

Amperage is what generates heat. If you double the voltage but keep the amperage the same, you can effectively double the power capacity. So long as the cables resistance is low enough this won't be an issue.

 

[Tek-Check]

Some more details here:

I have entire white paper, in Chinese. Will you find it useful?

 

[TheLostSwede]

I have entire white paper, in Chinese. Will you find it useful?

Thanks, but I wouldn't be able to read it. Also, based on what CNX put up, it seems like we're quite some time away from this being implemented into any actual devices.

480W via 48V DC? What is common about 48V? DisplayPort and HDMI are on 3.3V and/or 5V only. That requires extensive power delivery on host device, I know where they are going with this, so the display itself, or any other devices that connects to it, doesn't require its own power supply. But using the thin gauge wire to deliver those power? Nah...

It's not uncommon, as it's part of the Voltage range for PoE, but that's up to 1 Ampere, not 10 Ampere, which at 48 Volts could cause some serious harm, as the combination of 48 Volts and 10 Ampere is enough to cause cardiac arrest. People might expect that from something connected to a wall socket, not a device to device cable, which is why this is a bad idea.

 

[Tek-Check]

Also, based on what CNX put up, it seems like we're quite some time away from this being implemented into any actual devices.

True that, as they have only achieved certification process recently. So, possibly two years or so, but that's going to come quickly.

 

[trsttte]

Amperage is what generates heat. If you double the voltage but keep the amperage the same, you can effectively double the power capacity. So long as the cables resistance is low enough this won't be an issue.

True, but you can't just increase voltage willy nilly, past ~50V you need proper isolation because any contact with skin means possible death, and it gets harder to than convert that voltage to the low values end devices use (like a cpu/gpu runs on ~1.5v).

Some more details here:

GPMI is a Chinese alternative to HDMI and DisplayPort with up to 192 Gbps bandwidth, 480W Power Delivery - CNX Software

Defined by the Shenzhen 8K UHD Video Industry Cooperation Alliance (SUCA), GPMI (General Purpose Media Interface) is an alternative to HDMI and

www.cnx-software.com

View attachment 393941
Someone over there commented about the power delivery part and it doesn't look very well thought out, nor finalised. We're getting to a point where this could kill someone if something goes wrong.

View attachment 393942

Holy moly 10A?! So no voltage increase whatsoever, just ramming more power through. That has everything to not end well, for 10A you need a cable with 1.5mm^2/16AWG minimum, I'm already seing manufacturers cheaping out and cables burning up. And how exactly are you going to make a 16AWG cable transmit 200gpbs of data? I know only the power leads need to be thicker but still, the electric field is still there disrupting the signals, even regular usb-c has this problem with a lot of cables only doing usb2.0 speeds to stay economical.

 

[Apocalypsee]

It's not uncommon, as it's part of the Voltage range for PoE, but that's up to 1 Ampere, not 10 Ampere, which at 48 Volts could cause some serious harm, as the combination of 48 Volts and 10 Ampere is enough to cause cardiac arrest. People might expect that from something connected to a wall socket, not a device to device cable, which is why this is a bad idea.

I know it's ampere that could cause harm, it's the same issue with the 12VPWR thingy on RTX cards that causing melted cables. I mean 48V might be the usual range for PoE but not PC peripherals, if they wanted to make this 'General Purpose'. And they wanted to shove 480W through this thing?

 

[Tek-Check]

And they wanted to shove 480W through this thing?

I mean, they are building a base on the Moon and they have a space station in orbit.
What makes you think they are not capable of designing a new cable?
A little bit of optimism, please.

 

[Apocalypsee]

I mean, they are building a base on the Moon and they have a space station in orbit.
What makes you think they are not capable of designing a new cable?
A little bit of optimism, please.

Highly doubt your first statement have any relevance with my question. Unless they defy the law of physics, the cable you posted won't be able to sustain such power through tiny gauge wire.

 

[Tek-Check]

the cable you posted won't be able to sustain such power through tiny gauge wire.

Have you tested it?

 

[Scrizz]

Have you tested it?

This is known physics, and it's very easy to test with a bench power supply and a load. 16ga would be the smallest size for 480W and you typically want your cable to be able to safely carry more. Using smaller cables then the load requires is one reason why cables heat up and melt. The cables in this picture do not have the combined size to even meet the requirement.
Electricity doesn't except nationalities.

Wire Sizing Chart for 12V/24V/48V DC Systems - DIY Solar Resources

Information on wire sizing and a universal AWG/mm2 wire sizing chart to help in designing a 12V, 24V, or 48V DC renewable energy system.

www.altestore.com

 

[Tek-Check]

The cables in this picture do not have the combined size to even meet the requirement.
Electricity doesn't except nationalities.

The cables in the picture are prototypes for display purposes. I don't see a reason for the consortium of 50 companies to embark on a suicide mission. Do you see such reason?