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China launches HDMI and DisplayPort alternative — GPMI boasts up to 192 Gbps bandwidth, 480W power delivery (www.tomshardware.com)
submitted 1 year ago by to c/technology@lemmy.world
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[–] 40 points 1 year ago (3 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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  • [–] 28 points 1 year ago (5 children)

    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‽

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  • [–] 13 points 1 year ago (1 child)

    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.

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  • [–] 5 points 1 year ago

    The option to run one cable to the monitor, or reversely charge your laptop with one docking cable.

    USB-C docks can already do this. Obviously with less power and it's not perfect by any means, but we don't need another technology for this. And sure, it's two cables, one from wall outlet to integrated dock/monitor and usb-c from dock to laptop, but no matter the technology you still need something to plug in to wall outlet.

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  • [–] 3 points 1 year ago (2 children)

    Yeah, considering the recent VGA power connectors problems, what could possibly go wrong?

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  • [–] 1 point 1 year ago

    GPU power connectors run at very very low voltages - just 12V. And you need to have ridiculously beefy connectors and wires to run high loads at 12V. At 48V you can have 4x more power with the same wire (if insulation is rated for 48V).

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  • [–] 2 points 1 year ago (1 child)

    its super nice to plug a laptop into a screen and have the cable double as a charging cable for the laptop

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  • [–] 2 points 1 year ago

    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.

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  • [–] 5 points 1 year ago (1 child)

    USB standard is up to what, 40Gbps and 240W? That's pushing the envelope already. We'll see if this new standard can prove itself, anyways.

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  • [–] 2 points 1 year ago

    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.

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