• ABCDE@lemmy.world
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    9 months ago

    Can it use others, and is there a benefit? USB C makes a lot of sense; lower material usage, small, carries data, power and connects to almost everything now.

    • BetaDoggo_@lemmy.world
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      9 months ago

      I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself.

      The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What’s worse is that most aren’t labeled, so even if you know what spec you need you’re going to have a hell of a time finding it in a pile of identical black cables.

      Not that I dislike USB-C. It’s a great connector, but the branding of USB has always been a mess.

      • strawberry@kbin.run
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        9 months ago

        would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector?

        better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc

      • jaxxed@lemmy.world
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        9 months ago

        I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour.

      • ABCDE@lemmy.world
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        9 months ago

        Yep, very true. I didn’t understand this until I couldn’t connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is.

      • Mr_Dr_Oink@lemmy.world
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        9 months ago

        Dont forget the limited length. I cant remember exactly but usb c delivering power has a max length of arpund 4 metres

      • Freestylesno@lemmy.world
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        9 months ago

        This is the big issue I have with with “USB C”. USB c is just the connector which can be used for so many things. What actual is supported depends on things you can’t see, like the cable construction or what the device supports.

    • frezik@midwest.social
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      9 months ago

      There’s some really high bandwidth stuff that USB-C isn’t rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR.

      • ABCDE@lemmy.world
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        9 months ago

        That doesn’t even seem so unreasonable. Is that the limit though? My cable puts a gigabyte a second down it so I wouldn’t imagine that would hit the limit.

        • frezik@midwest.social
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          9 months ago

          USB-C with Thunderbolt currently had a limit of 40Gbit/sec. Wikipedia has a table of what DisplayPort can do at that bandwidth:

          https://en.wikipedia.org/wiki/DisplayPort

          See the section “Resolution and refresh frequency limits”. The table there shows it’d be able to do 4k/144hz/10bpp just fine, but can’t keep above 60hz for 8k.

          Its an uncompressed video signal, and that takes a lot of bandwidth. Though there is a simple lossless compression mode.