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Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux (www.heise.de)
submitted 4 months ago by throws_lemy@reddthat.com to c/technology@lemmy.world
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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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[-] pewgar_seemsimandroid@lemmy.blahaj.zone 2 points 4 months ago

Displayport is better anyways.

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[-] Blackmist@feddit.uk 1 points 4 months ago

Can the HDMI standard not be implemented in hardware somehow, and then the open source software just talks to that hardware?

It seems ridiculous that you can make a device that works fine under HDMI 2.1 but you can't access it with open source code.

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[-] Soapbox@lemmy.zip 1 points 4 months ago

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?

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[-] bystander@lemmy.ca 1 points 4 months ago

I don't know this area well. But I have a strong preference for all port shapes to be the same where possible. Can USB-C shaped heads do the same thing as DisplayPort? If not now, is it possible to make it in the future.

[-] OnfireNFS@lemmy.world 2 points 4 months ago

Thunderbolt is exactly that.

Thunderbolt 2 and Mini Displayport used to have the same connector. Since Thunderbolt 3, it now uses the USB C connector.

Thunderbolt 5 supports Displayport 2.1. I wish more devices used Thunderbolt compatible USB C ports. Or GPUs came with a Thunderbolt port on them. They're pretty awesome, it's like better USB C.

It seems like only laptops really use them to allow docking through a single cable

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[-] nialv7@lemmy.world 1 points 4 months ago

Evil, greedy little bastards...

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[-] async_amuro@lemmy.zip 1 points 4 months ago

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? 

[-] hemko@lemmy.dbzer0.com 1 points 4 months ago

Yeah, just it doesn't support VRR. If you read the article, you'd know

[-] CIA_chatbot@lemmy.world 1 points 4 months ago

If the article didn’t require accepting cookies to read it I would :D (just being snarky)

[-] Buelldozer@lemmy.today 1 points 4 months ago

Nah, I don't blame you. The list of crap that I had to allow under "required" to read the article was preposterous.

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this post was submitted on 10 Dec 2025
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