this post was submitted on 29 Feb 2024
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[–] darth_helmet@sh.itjust.works 274 points 1 year ago (3 children)

Sounds like hdmi Forum are a bunch of twats. Time for a new format.

[–] dinckelman@lemmy.world 311 points 1 year ago (4 children)
[–] Tja@programming.dev 123 points 1 year ago (4 children)

We cannot have two standards, that's ridiculous! We need to develop one universal standard that covers everyone's use cases.

[–] SlopppyEngineer@lemmy.world 126 points 1 year ago* (last edited 1 year ago)

There are now three competing standards.

https://xkcd.com/927/

[–] baropithecus@lemmy.world 41 points 1 year ago (2 children)

I know what you are referencing, but displayport already covers everybody's use cases

[–] ___@lemm.ee 10 points 1 year ago (1 children)
[–] Thunderbird4@lemmy.world 6 points 1 year ago* (last edited 1 year ago)

I’ll just pull it up on this display that’s more than 9 feet away from the source…

[–] sunbeam60@lemmy.one 20 points 1 year ago (1 children)
[–] Holzkohlen@feddit.de 25 points 1 year ago* (last edited 1 year ago) (1 children)

And what does that use? That's right it's Displayport Alternate Mode! Oh you've got Thunderbolt? Guess what, also Displayport!

[–] Tja@programming.dev 9 points 1 year ago
[–] Tattorack@lemmy.world 19 points 1 year ago

Yes, I agree. And it needs to be open bloody source!!

[–] darth_helmet@sh.itjust.works 55 points 1 year ago (2 children)

Hard to find on non-pc gear, but that’s a fair point

[–] frezik@midwest.social 15 points 1 year ago (1 children)

It's usually easy enough to adapt it as needed. It can typically send signals compatible with HDMI and DVI-D just fine.

[–] zarenki@lemmy.ml 11 points 1 year ago

The passive adapters that connect to DP++ ports probably still rely on this HDMI specific driver/firmware support for these features.

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[–] altima_neo@lemmy.zip 21 points 1 year ago (5 children)
[–] BetaDoggo_@lemmy.world 86 points 1 year ago (1 children)

USB-C display output uses the Display Port protocol

[–] ABCDE@lemmy.world 24 points 1 year ago (2 children)

Can it use others, and is there a benefit? USB C makes a lot of sense; lower material usage, small, carries data, power and connects to almost everything now.

[–] BetaDoggo_@lemmy.world 51 points 1 year ago (6 children)

I believe USB-C is the only connector supported for carrying DisplayPort signals other than DisplayPort itself.

The biggest issue with USB-C for display in my opinion is that cable specs vary so much. A cable with a type c end could carry anywhere from 60-10000MB/s and deliver anywhere from 5-240W. What's worse is that most aren't labeled, so even if you know what spec you need you're going to have a hell of a time finding it in a pile of identical black cables.

Not that I dislike USB-C. It's a great connector, but the branding of USB has always been a mess.

[–] strawberry@kbin.run 17 points 1 year ago* (last edited 1 year ago) (2 children)

would be neat to somehow have a standard color coding. kinda how USB 3 is (usually) blue, maybe there could be thin bands of color on the connector?

better yet, maybe some raised bumps so visually impaired people could feel what type it was. for example one dot is USB 2, two could be USB 3, etc

[–] Flipper@feddit.de 20 points 1 year ago (1 children)

Have you looked at the naming of the usb standards? No you havn't otherwise you wouldn't make this sensible suggestion.

[–] strawberry@kbin.run 6 points 1 year ago (1 children)

the shenenigans with USB 3 naming you mean? you're right, this would be too logical for USB lol

[–] Flipper@feddit.de 2 points 1 year ago (1 children)

Don't worry, they made it worse with usb 4.

[–] strawberry@kbin.run 1 points 1 year ago (1 children)
[–] Flipper@feddit.de 3 points 1 year ago (1 children)

USB 3.2 2x2 with 20 Gbps is the same as USB 4 Gen 2×2 with 20 Gbps

USB 4 Gen3x2 has 40 Gbps and was then renamed to USB 4 1.0

[–] strawberry@kbin.run 4 points 1 year ago

jesus what the fuck

[–] jabathekek@sopuli.xyz 3 points 1 year ago

Please think of the shareholders... :(

[–] jaxxed@lemmy.world 4 points 1 year ago (1 children)

I think that the biggest issue with dp over usbc is that people are going to try to use the same cable for 4k and large data transfers at the same time, and will then whine about weird behaviour.

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[–] ABCDE@lemmy.world 3 points 1 year ago

Yep, very true. I didn't understand this until I couldn't connect my Mac to my screen via the USB C given with the computer, I had to buy another (and order it in specifically). Pick up a cable, and I have no idea which version it is.

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[–] frezik@midwest.social 6 points 1 year ago (6 children)

There's some really high bandwidth stuff that USB-C isn't rated for. You have to really press the limits, though. Something like 4k + 240Hz + HDR.

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[–] Player2@lemm.ee 20 points 1 year ago (1 children)

USB C is just a connector, you might be referring to Displayport over USB C which is basically just the same standard with a different connector at the end. That or Thunderbolt I guess

[–] Chriswild@lemmy.world 4 points 1 year ago

I thought thunderbolt was DP passthrough as well

[–] trafficnab@lemmy.ca 13 points 1 year ago

USB C seems like a good idea but in reality all it really did was take my 5 different, not interchangeable, but visually distinct, cables, and make them all look identical and require labeling

[–] admiralteal@kbin.social 8 points 1 year ago (1 children)

I love having mysterious cables that may or may not do things I expect them to when plugged into ports that may or may not support the features I think they do.

[–] trafficnab@lemmy.ca 4 points 1 year ago

If the implementation is so broad that I have to break out my label maker, can we even really call it a "standard"

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[–] Zellith@kbin.social 39 points 1 year ago (1 children)
[–] wjrii@kbin.social 34 points 1 year ago (2 children)

I thought I had NSFW turned off... 🤣

[–] Zellith@kbin.social 19 points 1 year ago

( ͡° ͜ʖ ͡°)

[–] Kedly@lemm.ee 2 points 1 year ago (1 children)

What do Dill Pickles have to do with being work safe?

[–] wjrii@kbin.social 3 points 1 year ago* (last edited 1 year ago)

When you're trying to get into DPs, the outside can be slippery and the screw part can be tight! Very dangerous for the workplace.

[–] lolcatnip@reddthat.com 15 points 1 year ago (1 children)

As already mentioned, DisplayPort exists. The problem is adoption. Even getting DisplayPort adopted as the de facto standard for PC monitors hasn't done anything to get it built into TVs.

[–] vox@sopuli.xyz 1 points 1 year ago (1 children)

also there's still no alternative to hdmi-cec

[–] Scrollone@feddit.it 2 points 1 year ago (1 children)

DisplayPort supports CEC.

From Wikipedia:

The DisplayPort AUX channel is a half-duplex (bidirectional) data channel used for miscellaneous additional data beyond video and audio, such as EDID (I2C) or CEC commands.

[–] vox@sopuli.xyz 1 points 1 year ago* (last edited 1 year ago)

huh didn't know. does it work in practice tho?