Why though? It’s immediately clear where a VGA or hdmi cable works, but a USB-C could support or not support anything.
Comment on Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux
bystander@lemmy.ca 5 days ago
I don’t know this area well. But I have a strong preference for all port shapes to be the same where possible. Can USB-C shaped heads do the same thing as DisplayPort? If not now, is it possible to make it in the future.
panda_abyss@lemmy.ca 5 days ago
galaxy_nova@lemmy.world 5 days ago
So could an hdmi cable, there a lots of different hdmi specs as there are usb c specs. The problem is the lack of standardized labeling not the cables shapes. USB-C for everything would personally be my preference
fonix232@fedia.io 5 days ago
That is where port markings come into play...
panda_abyss@lemmy.ca 5 days ago
You also need cable markings, as both the cable and the port decide what specs to implement, and if they’re standard compliant or not.
Plus there are active/inactive cables for thunderbolt (and I think usb4) which massively affect performance.
USB c is better than the shitty port designs of USB before it, but it’s a huge mess.
acockworkorange@mander.xyz 5 days ago
Display Port over USB C is a thing now. It’s how laptop docks work these days. In one cable you have power, video, and USB.
OnfireNFS@lemmy.world 5 days ago
Thunderbolt is exactly that.
Thunderbolt 2 and Mini Displayport used to have the same connector. Since Thunderbolt 3, it now uses the USB C connector.
Thunderbolt 5 supports Displayport 2.1. I wish more devices used Thunderbolt compatible USB C ports. Or GPUs came with a Thunderbolt port on them. They’re pretty awesome, it’s like better USB C.
It seems like only laptops really use them to allow docking through a single cable
Anafabula@discuss.tchncs.de 5 days ago
You don’t need Thunderbolt for Displayport alt mode. It’s a separate spec that can also be implemented independently. I have a dock that’s not Thunderbolt but supports DP alt mode.
But Thunderbolt has some additional stuff too
defaultusername@lemmy.dbzer0.com 5 days ago
USB-C alt mode is DisplayPort with a USB-C connector.
gustofwind@lemmy.world 5 days ago
Unfortunately this has an even more serious problem:
How do you know which cable supports which modes of delivery?
Turns out you have a usb c cable that doesn’t actually support power delivery or anything
Now what do you do?
slacktoid@lemmy.ml 5 days ago
Buy a supported cable? That’s a cable issue not a standards or forums issue
gustofwind@lemmy.world 5 days ago
USB c cables right now are often counterfeit or inferior to the listed specs
You need to test them yourself to know their power delivery and features
With a separate port that is a significantly reduced issue
slacktoid@lemmy.ml 5 days ago
But again that’s not related to a committee stopping the implementation of a standard. It’s a scale of production issue, a labelling issue, and a consumer protection issue.
And I like having one port to just dock my machine in for power and display. I do understand how a separate port can help but I don’t see why we can’t have USB C working to its designed spec apart from the reasons I listed above.
LOLseas@lemmy.zip 5 days ago
It’s a travesty! I just went through this barbed wire circus! Swore to all my friends that Anker branded cables are “the way”. Sank a good amount of my money into that brand. Only to find that while yes, they excel in power delivery, many times when it comes to Data Transfer Rates, these new Anker cables are maxing out at 480Mbps. That’s USB ver. 2.0 speed. In a 2025 USB-C form factor. Other brands are pushing 40Gbps and Anker is just like the brandname (in Dutch): an anchor. I’m so peeved at the fact these manufacturers don’t do like the IEEE did regarding Ethernet cables: printed every X distance is the standard, right on the jacketing. You can’t tell me these USB cable manufacturers can’t follow suit. It’s USB! Need we all buy USB-IF compliant consumables? Is this really where we are this late into USB ver 3.X now going into USB ver. 4 ?!
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Buelldozer@lemmy.today 5 days ago
This is why many of the expensive Dock options from HP / Dell / Lenovo, etc come with a non-detachable USB-C cable. You can’t have the “wrong” cable because the one you need isn’t removable.
raldone01@lemmy.world 4 days ago
I really dislike that. But I understand the reaction to the failure of the usb org. Usb C cables must be labelled on the cable (repeating) with exactly what they support in standard terms.
Maybe another job for the EU.