The TL;DR is that the organization that controls the HDMI standard won’t allow any open source implementation of HDMI 2.1.

So the hardware is fully capable of it, but they’ll get in trouble if them officially implement it.

Instead it’s officially HDMI 2 (which maxes out at 4k @ 60Hz), but through a technique called chroma sub-sampling they’ve been able to raise that up to 4k @ 120Hz.

However there are some minor reductions in picture quality because of this, and the whole thing would be much easier if the HDMI forum would be more consumer friendly.

In the meantime, the Steam Machine also has display port as a completely issue free display option.

  • skymtf@lemmy.blahaj.zone
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    17 hours ago

    At this point just make an “adapter” that captures the disaply port signal and outputs it from a “supported” device

    • elucubra@sopuli.xyz
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      8 hours ago

      . And players that want to avoid the issue can use the Steam Machine’s DisplayPort 1.4 output, which supports even more bandwidth than HDMI 2.1 (and which can be converted to an HDMI signal with a simple dongle).

      So, ship with a dongle.

        • skymtf@lemmy.blahaj.zone
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          46 minutes ago

          That’s what I’m saying, it would be more complicated than a dongle, the PS5 has some sorta system that handles this, it would essientally be a device that supports it, that just decodes and encodes the video feed, as dumb as this sounds it’d the only soluations to use on most TVs