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HDMI Forum is unwilling to disclose the 2.1 specification for open-source (Linux): according to AMD, they had submitted a functional, HDMI 2.1-compatible driver [for linux?], which the Forum rejected. (www.heise.de)
submitted 10 months ago by to c/opensource@lemmy.ml
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I do not really have a body for this. I was not aware that this is a thing and still feel like this is bs, but maybe there is an actual explanation for HDMI Forum's decision that I am missing.

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[–] 43 points 10 months ago (7 children)

It’s pretty simple and straightforward, all you have to so is buy the cable and a professional cable tester to see what specs it’s actually in compliance with

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  • [–] 25 points 10 months ago (1 child)

    Don’t worry, I’m sure when USB 4 releases, they’ll retroactively change the names of USB 3.2 Gen 1 and USB 3.2 Gen 2 to “USB 4.3 Gen 0.01” and “USB 4.3 Gen 0.02” respectively. Then USB 4 will actually be named “USB 4.4 Gen 5” just because.

    And none of the cables will be labeled, nor will they simultaneously support high power delivery and full data speed. We’ll need to wait for “USB 4.4 Gen 4” for that, which is when the old standard will get renamed to “USB 4.4 Gen 3.5” instead.

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  • [–] 7 points 10 months ago (4 children)

    These days a ~10€ gadget can tell you about the electricity going through a USB connection and what the cable is capable of. I don't like the idea of basically requiring this to get that knowledge, but considering the limited space on the USB-C plugs I'm not sure anything is likely to improve about their labeling.

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  • [–] 14 points 10 months ago (3 children)

    That's good enough for me, what they called and wee where can I get one?

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  • [–] 3 points 10 months ago (2 children)
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  • [–] 2 points 10 months ago* (1 child)

    I have something like this myself, it's useful for knowing the power delivery of the cable/port combination, but I'm not sure if that really helps when it comes to determining the speed of the data transmission that the cable/port is capable of, or other features like displayport support, or which version of USB4 it might be supporting (I believe they have the same power delivery, even though the transfer speed is double).

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