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HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

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141–150 of 170 posts

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#141
post #20
post #12

Earlier quoted context omitted.

I think the connector good be better in terms of reversibility and none of that weird locking it has but it's an incredible technical achievement. And it seems perpetually ahead of HDMI in terms of features and Bandwidth.

Locking is a feature, not a bug

Especially when your monitor falls down from your desk instead of simply disconnecting at the plug.

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#142
post #138

Earlier quoted context omitted.

Being in the same business does not make it trademark infringement. Ubuntu could also advertise "This OS can run software for Windows by using WINE" without infringing on Microsoft's trademark, because they aren't acting under the trademark. Trademarks exist so you can't sell your product under the established name of another company and profit from their reputation or ruin it by selling bad products. Just mentioning…

My comment does not contradict anything you say here.

Do you think it would be trademark infringement if I code a HDMI driver and then publish it on GitHub with the description "This is a HDMI-Compatible driver"?

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#143
post #13

Earlier quoted context omitted.

It is. And this is the likely to be the solution to this issue. DP is a VESA standard, and its Dual Mode feature supports passive adaptors for, among other things, HDMI displays. I use one on my 20-series RTX card. A cheap DP-HDMI dongle makes all this go away. As long as VESA doesn't behave the same way, anyway.

> A cheap DP-HDMI dongle makes all this go away. As long as VESA doesn't behave the same way, anyway. You can even get cables that are DP on the input and HDMI on the output with minimal bulk.

But this feature works by transmitting HDMI signals so you still need to implement the software part in question.

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#144
post #62

Luckily with mid and high end monitors, DisplayPort is the standard. I don't understand why TVs don't come with even a single DisplayPort though. Maybe they are paid off by the HDMI forum?

It sounds like there aren't weird Hollywood conte t protections on display port.

My guess is that it's not a technical or even a user experience issue. It's probably a money issue with the deals tv manufacturers make with the media industry.

i.e. Netflix won't allow their app on a device that can circumvent HDCP.

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#145
post #121

Earlier quoted context omitted.

> Although DP 2.0 has been 'released', there are no products actually shipping with it Here's a GPU with DisplayPort 2.1 https://www.mindfactory.de/product_info.php/16GB-Sapphire-Ra... Here's a Display with DisplayPort 2.1 and higher Resolution&Refresh Rate than you specified https://www.mindfactory.de/product_info.php/57Zoll--144-78cm...

That monitor was released not three months ago; I was describing the 99.99999% case. DP 2.0 is rare enough that an article[1] was produced this year about its scarcity. [1]: https://tftcentral.co.uk/articles/when-is-displayport-2-1-go...

Is there a point for a monitor to use DP 2.0 when the only formats it can display are all supported by 1.4?

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#146
post #76

Earlier quoted context omitted.

I recently discovered you cannot pass 75Hz over DVI -> HDMI -> DVI! For some reason the bandwidth is too low? So for 60Hz there is interop. but for 75Hz you need a thick DVI cable.

HDMI currently supports up to 144Hz. Even HDMI 1.4 (2009) could reach 120Hz. However, compatibility is hit and miss in general. You may have had luck replacing one or more cables or adapters, but switching to displayport is likely to get the best results, anyway.

HDMI supports >200hz if you've got compatible hardware (HDMI 2.1).

It's admittedly hard to get this hardware unless you're willing to pay for the top of the line versions, but it does exist.

Budget hardware usually works better with display port however, that's true

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#147
post #25

The computer related companies should have given the middle finger to the media Mafiaa long ago and tell them to STFU if they ever wanted their content to be displayed in a computer with PC based standards and not MPEG. Once you get a libre OS you can dump the content of the BUS or fake whatever HDMI hardware out there to get pristine audio and video frames. Also, the current Hollywood movies are very subpar compared…

Sure. Try dumping SkyShowTime shows/movies then. (refuses to run on GNU/Linux). The average power user won't be able to run SkyShowTime on Linux. The idea is locking everyone on Windows, OS X or Linux with Secure Boot and verifiable boot chain if you want to watch movies or TV shows.

Crackers will just use kvm for virtualisation and dump whatever they want either directly or over SPICE.

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#148
post #58

Earlier quoted context omitted.

> In practice you'll have to construct a financially sustainable organization Here's a list of just the best known ones [0]. There are literally hundreds of thousands of open standards for everything from communications to mechanical engineering, to packaging to chemical formulas.... They make the world go round. No piece of technology you use today, especially the Internet would function without open standards and s…

There is next to nothing "open" (if we go with "open" = "open access") about most of these organizations. As a fun experiment, I went through the first 10 entries of the Wikipedia list. Only one of them[0] produces _open_ standards, which they have available for free download. For the rest of them the "standards" link on their website either directs to a webstore to purchase individual standards or to a membership si…

You're right it's scandalous that "open" standards touted for public safety and interoperability are sold for a fortune, excluding any small business, curious individual or inventor.

That's congruent with the problem of parasitic publishers like Elsevier who gouge publicly funded science and hold the world's papers to ransom.

Practically, theremedy is the same; there's nothing in the above list I can't find with a little effort via bit-torrents and Tor hidden services. It's a small inconvenience to do the legwork and then clean any PDF files for potenial malware.

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#149
post #62

Luckily with mid and high end monitors, DisplayPort is the standard. I don't understand why TVs don't come with even a single DisplayPort though. Maybe they are paid off by the HDMI forum?

It sounds like there aren't weird Hollywood conte t protections on display port. My guess is that it's not a technical or even a user experience issue. It's probably a money issue with the deals tv manufacturers make with the media industry. i.e. Netflix won't allow their app on a device that can circumvent HDCP.

I have 3 monitors, all connected via DisplayPort, and the nvidia control panel says they are HDCP capable. But I'm not sure I've ever used anything that requires HDCP to confirm it (and hope never to).

Re: HDMI Forum does not allow an open source implementation of the HDMI 2.1 spec

#150
post #66

Earlier quoted context omitted.

Most people don't connect a computer to their TV, assuming they even have a computer at all. And assuming they do, they all have HDMI anyway. As for everything else most people would connect to their TV, they all have HDMI and precisely none have DisplayPort. Given that, supporting DisplayPort is an unnecessary expenditure on bill of materials and labor for TV manufacturers.

Except that most laptops today have only DP, and basically all USB-C=>HDMI adapters are USB-C => DP alt mode => HDMI adapters. And outside of gaming consoles it is becoming increasingly more rare to connect anything to the TV outside of the luxury segment (as even build in sound often is better then any external sound up to a price region where the lower luxury segment starts, so buying a slightly better TV without a…

Generally agree, except for the sound part. TV speakers are awful. No matter the TV you should always have an external system.
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