518

The TL;DR is that the organization that controls the HDMI standard won't allow any open source implementation of HDMI 2.1.

So the hardware is fully capable of it, but they'll get in trouble if them officially implement it.

Instead it's officially HDMI 2 (which maxes out at 4k @ 60Hz), but through a technique called chroma sub-sampling they've been able to raise that up to 4k @ 120Hz.

However there are some minor reductions in picture quality because of this, and the whole thing would be much easier if the HDMI forum would be more consumer friendly.

In the meantime, the Steam Machine also has display port as a completely issue free display option.

you are viewing a single comment's thread
view the rest of the comments
[-] IrateAnteater@sh.itjust.works 204 points 1 day ago

With TVs starting to get USB-C inputs, which are displayport under the hood, hopefully HDMI fucks off.

[-] NuXCOM_90Percent@lemmy.zip 37 points 1 day ago

Ballparking but it will likely take closer to a decade than not for that to actually happen... and I am still not optimistic. And there are actually plenty of reasons to NOT want any kind of bi-directional data transfer between your device and the TV that gets updated to push more and more ads to you every single week.

The reason HDMI is so successful is that the plug itself has not (meaningfully?) changed in closer to 20 years than not. You want to dig out that PS3 and play some Armored Core 4 on the brand new 8k TV you just bought? You can. With no need for extra converters (and that TV will gladly upscale and motion smooth everything...).

Which has added benefits because "enthusiasts" tend to have an AV receiver in between.

The only way USB C becomes a primary for televisions (since display port and usb c are arguably already the joint primary for computer monitors) is if EVERY other device migrates. Otherwise? Your new TV doesn't work with the PS5 that Jimmy is still using to watch NFL every week.

[-] Zorsith 17 points 1 day ago

USB-C adapters for absolutely everything are thankfully quite common now thanks to the laptop/dock industry.

[-] NuXCOM_90Percent@lemmy.zip 4 points 1 day ago* (last edited 1 day ago)

In the sense that we have dongles/docks, sure. In the sense of monitors with native USB-c input? These are still fairly rare as the accepted pattern is that your dock has an HDMI/DP port and you connect via that (which actually is a very good pattern for laptops).

As for TVs? I am not seeing ANYTHING with usb c in for display. In large part because the vast majority of devices are going to rely on HDMI. As I said above.


I'll also add that many (most?) of those docks don't solve this problem. The good ones are configured such that they can pass the handshake information through. I... genuinely don't know if you can do HDCP over USBC->HDMI as I have never had reason to test it. Regardless, it would require both devices at the end of that chain to be able to resolve the handshakes to enable the right HDMI protocol which gets us back to the exact same problem we started with.

And the less good docks can't even pass those along. Hence why there is a semi-ongoing search for a good Switch dock among users and so forth.

[-] Truscape 6 points 1 day ago

Regarding the Nintendo Switch, it's because of their engineered malicious USB-C protocol design that makes the console "Not behave like a good USB citizen should". It's less of an issue with the peripherals as a whole.

load more comments (2 replies)
load more comments (13 replies)
this post was submitted on 05 Dec 2025
518 points (100.0% liked)

Steam Hardware

19887 readers
469 users here now

A place to discuss and support all Steam Hardware, including Steam Deck, Steam Machine, Steam Frame, and SteamOS in general.

As Lemmy doesn't have flairs yet, you can use these prefixes to indicate what type of post you have made, eg:
[Flair] My post title

The following is a list of suggested flairs:
[Deck] - Steam Deck related.
[Machine] - Steam Machine related.
[Frame] - Steam Frame related.
[Discussion] - General discussion.
[Help] - A request for help or support.
[News] - News about the deck.
[PSA] - Sharing important information.
[Game] - News / info about a game on the deck.
[Update] - An update to a previous post.
[Meta] - Discussion about this community.

If your post is only relevant to one hardware device (Deck/Machine/Frame/etc) please specify which one as part of the title or by using a device flair.

These are not enforced, but they are encouraged.

Rules:

Link to our Matrix Space

founded 4 years ago
MODERATORS