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Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux (www.heise.de)

submitted 3 days ago by throws_lemy@reddthat.com to c/technology@lemmy.world

257 comments fedilink hide all child comments

The HDMI Forum, responsible for the HDMI specification, continues to stonewall open source. Valve's Steam Machine theoretically supports HDMI 2.1, but the mini-PC is software-limited to HDMI 2.0. As a result, more than 60 frames per second at 4K resolution are only possible with limitations.

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[–] OR3X@lemmy.world 40 points 3 days ago (6 children)

But why does the HDMI fourm not want a open source 2.1-compliant implementation? Is it DRM related? I feel like it's DRM related.

[–] Goretantath@lemmy.world 44 points 3 days ago (1 children)

Its fully DRM related.

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[–] bobs_monkey@lemmy.zip 24 points 3 days ago (1 children)

Likely moreso that they're facing pressure from other competitors in the industry that see Steam and open source in general as a threat to their business model. The HDMI forum is made up of industry leaders, and naturally Microsoft and Sony are there.

https://hdmiforum.org/members/

[–] Jesus_666@lemmy.world 31 points 3 days ago (4 children)

They've been refusing open HDMI 2.1 since 2017. I don't think that being afraid of Linux becoming the dominant gaming platform plays a role here; it's more likely that they're afraid people might find new ways to get at protected content.

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[–] Soapbox@lemmy.zip 22 points 2 days ago (4 children)

Not all software available on Linux is open source. NVIDIA drivers for example. Hell, most of the games on Steam are closed source.

So, is it just a matter of principle on Valve and AMD's part that they only want to ship with fully open source drivers?

I'm not technically knowledgeable enough to understand why you can't just make the HDMI 2.1 part of the driver code closed source and the rest of the graphics drivers open?

[–] turmacar@lemmy.world 20 points 2 days ago* (last edited 2 days ago) (3 children)

Modern specs are complicated. I vaguely remember something about a cryptographic key the driver needs to be signed with to successfully complete the handshake to enable all display options between the computer and display.

Not entirely unwarranted either, an unexpected amount of voltage on an unexpected pin because the driver / hardware is misconfigured damaging your TV would suck. (Still sounds like the Forum is being a dick about it though.)

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[–] nialv7@lemmy.world 20 points 2 days ago (1 children)

Evil, greedy little bastards...

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[–] async_amuro@lemmy.zip 22 points 3 days ago (6 children)

Maybe a dumb question… if I used a DisplayPort to HDMI 2.1 adapter, would I get 4K at 120Hz on the Steam Machine and my LG CX tv?

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