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the HDMI Forum (which manages the official specifications for HDMI standards) has officially blocked any open source implementation of HDMI 2.1.
And here are those companies making that decision
You only need to get down the list to broadcom before it becomes obvious this isn't going to change.
so pretty much all important companies ☹️
I'm glad more people are hearing how it's this group of standards assholes who are causing it.
Laughs in displayport
I don't know why the Steam Machine doesn't have DisplayPort 2.0 (release June 2019)...
Probably because it's designed to be attached to TVs, which use hdmi.
It has DP 1.4 though.
Ouch, tought it didn't have DP at all. My bad
I really wish displayport on TVs would take off.
I really wish I could buy big ass dumb monitor at the cost of a similar size smart tv.
Hollywood hates that idea.
That's the idea
How, though? I'm not terribly knowledgeable about the law, but I know interoperability is one of the major sources of exceptions to copyright protection, and the whole Google vs Oracle saga would imply there's nothing illegal about making your own implementation of a standard without permission.
AMD is a member of the HDMI consortium and is probably bound by private agreements to not make open source drivers without permission from the consortium. They did try to get them to budge but they didn't.
Copyright, patent, trademark, and trade secret laws are all entirely different and have almost nothing to do with each other (don't be fooled by the property-rights-hating shysters who try to gaslight you into lumping them all as "intellectual property[sic]").
Trademarks and patents don't have the same kinds of interoperability exceptions that copyright does, and you can't claim to "support HDMI™" without licensing rights to those in addition to whatever copyrighted code you might need for the software side of the implementation.
So what stops them from supporting HDMI™ 2.1 but just not call it that? As long as they create the code in a clean room scenario I don't see how they could be liable for damages? Although I assume it has something to with DRM.. And then you get into the weeds of the terrible cyber security laws...
Valve tells Ars its “trying to unblock” limits caused by ~~open source driver~~ closed source corporate megalomania issues.
FTFthem. Open Source is not the problem here. The problem is the HDMI Forum being evil.
Surprised they didn't take the opportunity to push DisplayPort a little more.
the problem is although its a pc, valve wants it to sort of appeal to console users. and the problem is that the HDMI forum members are also TV manufacturers. they are very unlikely to ever support displayport.
as long as TVs are more popular than monitors, that trend of HDMI holding control will never cease.
I'm still upset at how hard it is to get a monitor with multiple DP inputs...
Except there is no reason to ever put hdmi on the hardware. Displayport is superior to hdmi in every way, and when you need to step down to peasant land... a simple passive DP to hdmi cable/adapter will do the job. To even drive the point how shit hdmi is, you cant use a passive adapter from hdmi to dp, you'll need a very expensive active adapter to do it.
there is, HDMI Arc, which is why all the home theater companies do not want to weaken its hold.
Its a collaboration of tv manufacturers, home audio and the movie productions who want to keep HDMI propietary as fuck, to prevent piracy and to make their theater setup locked to themselves.
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I'm a little disappointed, but not surprised. This thing is designed to be used in the living room hooked up to the TV, after all.
The fact of A/V consumer electronics standardizing on HDMI instead of DisplayPort is kinda not Valve's problem to solve, as much as I'd like it to try.
Is display port better in this regard?
Yes but gaming TVs are all HDMI-only, so this is a major issue for a gaming PC that is being designed for the living room.
Yes, as the standard is more or less open source. There are no barriers to entry.
That's what I suspected. So rather than fighting HDMI, we need to buy display port instead.
Have you looked at the HDMI Forum member list and board of directors?
It includes pretty much every manufacturer who makes decisions which ports to include on their devices. They have no interest in DisplayPort adoption.
I had a little scroll through yeah. They may not be interested in display port, but they're sure interested in money. That's why I suggested people by stuff with display port, rather that try to fight to have HDMI more open.
I appreciate AMD trying to improve HDMI openness, they've always been more open. That's why I've bought AMD oven Intel and nvidia for the last 10 years or so.
All we can do as consumers is vote with our wallets. That's all these companies care about.
Except it's not on any TVs.
I thought you can connect DP to HDMI with a simple cable, no adapters needed?
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Greed.
DisplayPort4eva
Wonder if they can ship a proprietary HDMI part of the driver or if there's going to be an unofficial 2.1 driver patch that can be installed down the line.
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this post was submitted on 04 Dec 2025
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