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It gets even better, each function of the port also needs proper support from the cable. Often cables do not support the full spec of usb to cut costs.
While the symbols in the post are often put on computers, for usb cables this is seldom done (only a few brands do).
Source: had to find a cable that supports both DP and PD to connect a portable external monitor after I lost the original cable. (1/9 cables worked)
Yeah, it’s gotten so bad I eventually ordered a USB cable checker to figure out what any given USB cable is capable of (and to see if the cable has gone flaky, which seems to happen a lot). I haven’t received it yet so I don’t know if I can recommend this item, but … gosh darn you sure need something like this.
LOL, yeah, manufacturers don’t follow this at all.
Thank God there’s a standard for USB. And another one. And another one. And another one. And another one. And another one. And another one. And another one. And another one. And another one. And another one. And another one…
The USB-C standard and particularly the USB PD (power delivery) is so complex it almost feels comical.
The PD standard document (freely available on usb.org) is over 800 pages long and features a lengthy part about the role of the cable alone which is mostly hidden from the user. Here’s a short video about this issue: https://www.youtube.com/watch?v=6bZ0y9G-4Pc
USB = Unintelligible Symbols of Bewilderment
My laptop has two USBC ports. No logos of any kind. They are Thunderbolt 4. ¯_(ツ)_/¯
If you’re trying to get Lemmy to print the backslash, you need to make it a double backslash since backslash is an “escape” character that means “ignore any special formatting meaning of the next character” (among other meanings)
I have never seen one with SS, but maybe they removed that part in Germany.
For those that don’t know
I see them on the back of full size computer cases and on docks. They will often be one SS port on the top. I had no idea what it meant before now.
A small correction on USB PD…
It’s not just USB PD that supports power delivery: Standard USB from way back in 1.0 also supports power delivery to devices as standard, but it’s only up to 100mA in USB 1.0, 500mA in USB 2.0 and 900mA in USB 3.0, all at 5V.
USB PD is a dedicated power delivery USB protocol that supports much higher currents (up to 5A) as well as dynamically configured voltages (so, not fixed as 5V anymore) though it’s all negotiated so your 5V-only phones isn’t going to just get burned with 20V from a USB PD charger.
Since Power = Current * Voltage USB PD can put out quite a lot of power for supporting devices (the maximum depending on what both sides support), which means much faster transmission of power via USB which for example means faster charging of chargeable devices via USB with USB PD.
Anyways, the point being that even really old USB 1.0 can charge your device (just really really slow, though you’ll be hard pressed to find anything that doesn’t support at least USB 2.0 which can send 5x the current of 1.0 hence charge 5x faster than it), and that standard charging speed goes up with each new Standard USB generation since each has a higher maximum current than the previous one, so for example a standard USB 3.1 charger without USB PD support can still push a nice amount of power down the line to charge devices. It’s just that with USB PD things really take off (though only up to a shared maximum that both sides support) and it can push enough power to support larger devices such as full-blown monitors or even charging notebooks.
I just love that in a world with Power Delivery (PD) they decided that the best way to indicate Display Port (DP) was to have an ambiguous symbol involving a P and a D.
The P and D symbol is the DisplayPort logo. I’m not sure when it was first used, but the DisplayPort standard itself is quite a bit older than USB Power Delivery.
It’s still confusing though regardless of which can lay the best claim to the letters P and D. I would have suggested Power Delivery could use some sort of lightning bolt symbol, but then I realised that would probably conflict with Thunderbolt, which also uses USB-C.
It’s almost as if having all these different features would be easier to differentiate if they had different physical shapes.
Yeah, Display Port is old, but I’ve never seen that P and D symbol before, or at least never noticed it. And, even if it existed before Display Port over USB, you’d think that that potential confusion was a good opportunity to come up with a new logo for something that would be put next to a USB port.
It’s almost as if having all these different features would be easier to differentiate if they had different physical shapes.
I think the goal was always that you’d only ever need one type of port and one type of cable and that that port and cable could do anything. Unfortunately, because there are so many revisions and so many features are optional, you’ve now got a situation where the port is the right shape, the cable fits into the port, but you can’t get the thing to work without reading the fine print, or without decoding obscure logos.
How about a monitor/TV for display.
I like that battery for power, though a vertical battery would be clearer.
I like how they (seem to) try to get away from Latin alphabet, just to go with DP for display port.
Also, giving anything the initials “DP” is weird and creepy as fuck, given that “DP” was already a well-established acronym in the porn industry years before DisplayPort was even conceptualized.If you’re going to forbid any 2-letter initialism because it might have naughty connotations, you’re not going to be left with many options.
person with the initials DP has left the chat crying
Who the hell makes a type-c port that only runs at 2.0 speeds?
iPhone 15, Samsung A series phones and tablets, most Motorola devices, most oppo devices, most realme devices, most nothing devices, most xiaome devices, and many more
I find it hilarious that Apple did that with the iPhone 15. Gave the current technology to only the pro models 😂
They are such grimy bastards I swear, probably saved $1 just to make you pic the pro
bet they didn’t save anything and it’s the same chip just artificially limited
You’d be surprised. My mouse only needs 2.0, but uses a C connector for compatibility. It provides an A to C cable with only 2.0 wiring, which is a decision I assume they made to allow the wire to be more flexible as it can be charged during use or used entirely wired.
Same with my keyboard, and I appreciate the compatibility. If it doesn’t need anything faster than 2.0 speeds, there’s no reason to include more expensive parts.
That meme sucked
All they had to do was require stamped icons on the ends of the plugs in the spec, and instead we have the current cable mystery clusterfuck 🤦
Why not label the ports and cables with:
- 10Gb/s
- 2.1Amps
- 1080p at 60hz
It’s future proof and doesn’t need a decoder manual other than basic literacy. It can be in whatever language the fucking keyboard is. If you want to be redundant but even more clear:
- Universal Serial Bus -> (this hole right here)
- Speed: 40Gb/s
- Power: 2.4Amps
- Audio/Video: 4K at 120Hz or 8K at 30Hz
Amps are not power
So do like they did for video and put 2A @ 5V on the label. Now you have power.
Edit: clarity
But if its USB PD it can be more than 5V though.
That’s why you specify it there:
2A@5-15V or something.
Sorry. I must have missed that. I am working on 3 hours of sleep rn due to a flight I need to catch.
Ah. GL with your flight.
“Universal”
My dick fits into all of them
Seems pretty universal to me 😎
I’ve literally never seen any of these except the top symbol.
I’ve never seen any of the SS 10gig or USB PD icons, but I’ve seen the rest. I’ve got Thunderbolt icons on at least 2 icons and SS USB 3.1 icons on many normal USB A ports.
