mundane 63 points 6 months ago

What has changed that allows them to do this, or are they just ignoring the HDMI Forum?

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Davel23 21 points 6 months ago

I wonder what this means for the Steam Machine.

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mephiska 24 points 6 months ago

I wonder if this means we can get VRR on the Steam Deck via official dock. That would be great.

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Damage 8 points 6 months ago

Well, the article says we won't, so no need to wonder

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Lemmchen 6 points 5 months ago

UPDATE: Even more exciting... Per this comment from a prominent AMD Linux developer, it looks like a full HDMI 2.1 implementation for AMDGPU could be coming!

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TheCornCollector 21 points 6 months ago

What is the difference between this implementation and the reverse engineered patches that were published a few months ago by Michał Kopeć and Tomasz Pakuła?

Edit: apparently it’s not the same patch, but Tomasz was CC’ed in the patch set so the timing might not be accidental.

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mrbigmouth502 7 points 5 months ago

Title is clickbait. All that's been confirmed so far is FRL.

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BlackLaZoR 1 point 6 months ago

Typical Phorinix. Wil not elaborate what FRL is.

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ryper 16 points 6 months ago

The first paragraph:

It's not complete HDMI 2.1 support but to much surprise hitting the mailing list today were official patches from AMD for implementing HDMI Fixed Rate Link "FRL" support for their kernel graphics driver. HDMI FRL as part of HDMI 2.1+ allows for higher bandwidth to support higher refresh rates and resolutions.

How much more of an explanation do you need?

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BlackLaZoR 1 point 5 months ago

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TheCornCollector 3 points 6 months ago

I’m no expert, but basically the way to unlock higher/full bandwidth for HDMI 2.1. This will allow the use of higher refresh rate, resolution, and bit depth + HDR. Right now you need to make sacrifices in at least one category with HDMI

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BlackLaZoR 2 points 6 months ago

Yeah I know the issue. You can run 4k TV at 120hz through it but it will use chroma subsampling to run on limited bandwidth.

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defaultusername 3 points 6 months ago

Fixed Rate Link.

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BlackLaZoR 0 points 5 months ago

Finally real answer!

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snoons -10 points 6 months ago

don wan it

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timewarp -10 points 6 months ago

LOL... Surprised they aren't only doing so for their workstation cards like they do for everything else. The SR-IOV disablement is just greed at its finest. AMD also just released their new CPU with only difference 3D cache on the orher side & they're charging like an extra $300 for it.

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Zangoose 45 points 6 months ago

Not that I want to defend AMD but the reason they haven't been able to is because HDMI is a private spec and the HDMI forum specifically forbade them from releasing the driver they tried to publish a few years ago (even though the firmware with the actual implementation is in the GPU itself and still proprietary). That's why 2.1 works on windows and not Linux with the past 2 gens of AMD GPUs.

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