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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 11 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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[–] 8 points 11 months ago (2 children)

I mentioned this in another thread but “DP Alt” (DP over USB-C) is not a default feature of the USB spec and is an optional extension that needs to be added via additional hardware and supported by the device. At that point you’re basically adding in DP with just a different port.

To that end, it’s still the same thing that TV manufacturers just aren’t adding in DP support regardless of connector.

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  • [–] 4 points 11 months ago (1 child)

    Isn't usb-c able to carry Thunderbolt, which subsumed DisplayPort at some point? I thought Thunderbolt and DisplayPort were thus merged into whatever the usb standard was at the time.

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  • [–] 6 points 11 months ago

    Thunderbolt is a proprietary specification by Intel and Apple, while Displayport is an open standard developed by VESA.

    USB connector hardware can meet the Thunderbolt or Displayport specifications, but must conform. Most do not.

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