397
submitted 8 months ago by ruffsl@programming.dev to c/linux@lemmy.ml

For three years there has been a bug report around 4K@120Hz being unavailable via HDMI 2.1 on the AMD Linux driver.

The wait continues...

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[-] ipacialsection@startrek.website 236 points 8 months ago

This really bothers me. Closed standards locked behind a licensing fee may as well not be standards at all, in my opinion.

[-] turbowafflz@lemmy.world 73 points 8 months ago

I don't understand why any hardware uses HDMI anymore anyway, what does it have that displayport doesn't?

[-] Dudewitbow@lemmy.zip 68 points 8 months ago* (last edited 8 months ago)

HDMi foundation is founded by companies who own the home theatre environement (mainly movie conpanies and television) who puts DRM on HDMI to make it harder to illegally copy content like movies, ao they will always want to be anti open source because thats the request of streaming services/movie businesses. Its why for example, mobile devices have widevine levels. those levels basically determine how "unlocked" the device is and services will refuse to offer full functionality to unlocked devices because of it, be it audio or video.

Members of VESA, who control the displaypprt standard are generally computer companies are mostly not in the business of media, so they value specs over drm on changes, which for example a use case is that displayport allows for daisychaining diaplays.

[-] n3m37h@lemmy.dbzer0.com 12 points 8 months ago

I don't know a single person who has ever used HDMI to steal copyrighted content. Seriously? Who would rip a 2 hr move by watching it vs the 10 min it takes to rip a movie digitally.

Like shit ya got CAM, WebRIP, BRRIP and SCENE. I doubt HDMI was used in any of these scenarios.

[-] Dudewitbow@lemmy.zip 9 points 8 months ago

technically speaking, every gamer who capture cards to bypass when games on PlayStation has an explicit mode that disables built in recording when a cutscene is active is an example.

[-] Hapbt@mastodon.social 3 points 8 months ago

@n3m37h @Dudewitbow HDMI consortium decides to f around and find out if people really care re: displayport vs hdmi

[-] MiltownClowns@lemmy.world 58 points 8 months ago

Decades of being the standard in a/v. That's like asking, why don't we get rid of gas stations and just install electric chargers? Well, everybody's got gas powered cars.

[-] turbowafflz@lemmy.world 20 points 8 months ago

AV things sure since they stick around longer, but computers? When was the last time you saw a high end GPU with VGA or DVI? And they already usually have mostly DisplayPort with just one or two HDMI ports

[-] MiltownClowns@lemmy.world 22 points 8 months ago* (last edited 8 months ago)

Well, I wasn't referring to that ecosystem. That ecosystem is already on display port. The reason HDMI is so prevalent is because it's the standard in audio-visual equipment. Why would I talk about computer equipment when it's not the standard there?

The point still stands. Everybody has equipment that has HDMI, and to phase out that standard in equipment going forward is phasing out equipment people already own.

[-] krolden@lemmy.ml 7 points 8 months ago

Computers are AV things.

[-] dog_@lemmy.world 1 points 8 months ago

Today. Every time I go downstairs.

[-] TimeSquirrel@kbin.social 9 points 8 months ago

HDMI only had about four good years to itself before DisplayPort showed up. In contrast, the RCA port stuck around for damn near 100 years.

[-] n3m37h@lemmy.dbzer0.com 4 points 8 months ago

We also didn't have digital signals till DVI in 1999, HDMI in 2002 and display port in 2006

[-] Flaky@iusearchlinux.fyi 22 points 8 months ago

Probably a lot more hardware using HDMI than DisplayPort? Just throwing a guess, tbh.

That being said, I might consider looking towards DisplayPort when I can get a new monitor...

[-] virr@lemmy.world 9 points 8 months ago

CEC (technically I think displayport could support it, but generally isn't implemented) and ethernet up to 100Mbps.

[-] anyhow2503@lemmy.world 15 points 8 months ago

Almost nothing uses ethernet over HDMI to my knowledge.

[-] BautAufWasEuchAufbaut 7 points 8 months ago

This is the first time I heard of Ethernet over HDMI and I can't tell if you're joking.

[-] narc0tic_bird@lemm.ee 8 points 8 months ago

Feature-wise probably next to nothing, and it's usually behind one or two generations in terms of bandwidth. HDMI is often the only port available on TVs though, so GPU makers likely can't afford to just leave it out.

[-] Grass@sh.itjust.works 9 points 8 months ago* (last edited 8 months ago)

They should anyway. New tech TV's are all smart these days and the dumb ones are made for two decades ago. At this point we are better off with a PC monitor and separate speakers. Built in speakers are shit seemingly as a requirement. I use a video port switch for extra inputs without needing to use the on screen menus or just running out of built in ports.

[-] Hyperreality@kbin.social 2 points 8 months ago* (last edited 8 months ago)

Yep. Very common.

A lot of people use their pc like a console or media server. Ie. use it to watch/play stuff from their bed or couch.

[-] Auli@lemmy.ca 1 points 8 months ago

Why not? If you need it get a converter.

[-] n3m37h@lemmy.dbzer0.com 5 points 8 months ago

eARC and 12gbp/s more bandwidth (4k@185hz vs 4k@120hz)

Otherwise the same

[-] SuperIce@lemmy.world 3 points 8 months ago

Your info is outdated. DP 2.0 is 80 Gbps can do 4K@240hz without display stream compression. It can do up to 16K@60hz using DSC.

[-] SchmidtGenetics@lemmy.world 1 points 8 months ago

Can hook up to TVs…

[-] Zucca@sopuli.xyz 2 points 8 months ago

Besed on the upvotes, it's not only your opinion. 👍

[-] parens@programming.dev 106 points 8 months ago

Alright AMD, just remove HDMI from your graphics cards and be done with it 🤷 . Fuck the HDMI forum.

[-] itsralC@lemm.ee 38 points 8 months ago

As much as I want them to give HDMI the middle finger I don't think they have enough leverage in the GPU market to pull such a bold move off.

[-] UnpledgedCatnapTipper 15 points 8 months ago

They could they just include a DP to HDMI adapter in the box and have no HDMI ports on the GPU maybe?

[-] fuckwit_mcbumcrumble@lemmy.world 8 points 8 months ago

They’re currently what 15% of the market? Nvidia would happily swoop in and pick up some more market share.

[-] Auli@lemmy.ca 1 points 8 months ago

Ehh Nvidia doesn’t care about the graphics card market anymore. Look at the cash AI is raking in for them.

[-] MigratingtoLemmy@lemmy.world 72 points 8 months ago

Alright, displayport, here we come

[-] n3m37h@lemmy.dbzer0.com 21 points 8 months ago

I've been on the DP bandwagon since using my GTX 660Ti

[-] fuckwit_mcbumcrumble@lemmy.world 10 points 8 months ago

I don’t think I’ve ever used hdmi by choice. It’s always been VGA > DVI > DisplayPort. The only times I use HDMI is consoles or stupid monitors either only 1 DP and a bunch of HDMI.

[-] flashgnash@lemm.ee 2 points 8 months ago

Why VGA and DVI? I had thought they were limited in their max resolution/refresh rate

[-] fuckwit_mcbumcrumble@lemmy.world 1 points 8 months ago

DVI and vga were mostly on older devices. HDMI was inferior to dual link dvi until I’d switched to DisplayPort.

[-] Dehydrated@lemmy.world 8 points 8 months ago

These guys can go fuck themselves

[-] Sentau@discuss.tchncs.de 5 points 8 months ago* (last edited 8 months ago)

So I see people on the phoronix forums complaining that this is a bad thing because they have TVs which are HDMI only. From what I read, the HDMI 2.1+ spec is only needed to support extreme cases like 4k@120Hz and above. So my question is how many people are there who have a TV old enough to have no display ports but be of that outrageous specification.

Edit : it seems I am mistaken in thinking that new TVs have display port.

[-] Catsrules@lemmy.ml 5 points 8 months ago

So my question is how many people are there who have a TV old enough to have no display ports but be of that outrageous specification

As far as I know no consumer TV has Display port.

I bought a TV maybe 2-3 years ago that supports 4K@120 and it doesn't have a display port, only HDMI.

[-] ruffsl@programming.dev 4 points 8 months ago

I'm using a recent 42" LG OLED TV as a large affordable PC monitor in order to support 4K@120Hz+HDR@10bit, which is great for gaming or content creation that can appreciate the screen real estate. Anything in the proper PC Monitor market similarly sized or even slightly smaller costs way more per screen area and feature parity.

Unfortunately such TVs rarely include anything other than HDMI for digital video input, regardless of the growing trend connecting gaming PCs in the living room, like with fiber optic HDMI cables. I actually went with a GPU with more than one HDMI output so I could display to both TVs in the house simultaneously.

Also, having an API as well as a remote to control my monitor is kind of nice. Enough folks are using LG TVs as monitors for this midsize range that there even open source projects to entirely mimic conventional display behaviors:

I also kind of like using the TV as simple KVMs with less cables. For example with audio, I can independently control volume and mux output to either speakers or multiple Bluetooth devices from the TV, without having fiddle around with repairing Bluetooth peripherals to each PC or gaming console. That's particularly nice when swapping from playing games on the PC to watching movies on a Chromecast with a friend over two pairs of headphones, while still keeping the house quite for the family. That kind of KVM functionality and connectivity is still kind of a premium feature for modest priced PC monitors. Of course others find their own use cases for hacking the TV remote APIs:

[-] cobra89@beehaw.org 2 points 8 months ago

TVs don't have DisplayPort. I just bought a new TV, none of the options I looked at had display port.

this post was submitted on 29 Feb 2024
397 points (100.0% liked)

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