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They make USB-C cables with displays now

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Re: They make USB-C cables with displays now

#121

Post by crote »

transpute wrote: post #60
lallysingh wrote: post #43

So shall we expect the USB protocol to go encrypted? The USB committee (I don't know their actual name) can act as a root CA. It doesn't take a lot of compute to encrypt at my typing rate. I'd expect high transfer rate devices to probably already have the hardware (e.g everyone at rest).

There was a 2016 draft proposal for USB-C authentication, https://www.anandtech.com/show/10251/usbc-authentication-ann...

It's not just a draft, the data required for a lot of this is already being included in cables currently being sold. I'm not aware of it actually being used, though.

Re: They make USB-C cables with displays now

#123

Post by crote »

duskwuff wrote: post #46
milesvp wrote: post #5

Earlier quoted context omitted.

Fun fact. Any USB-C cable that needs to handle higher wattage than 5V@3A has circuitry that talks on the CC line to let the source know it’s not going to melt.

The threshold is higher than that. Passive USB-C cables can do up to 20V @ 3A (60W). Electronically marked cables are only required for higher power profiles.

To be pedantic, the eMarker is required in a USB 2 cable conducting over 3A, and in any USB 3+ cable.

Re: They make USB-C cables with displays now

#124

Post by Izkata »

geepytee wrote: post #31
Izkata wrote: post #23

Look for "power meter" if you want stuff like this. I bought this one a year ago: https://www.amazon.com/gp/product/B0B99Z2GJK/ And this one for USB 3.0 four years ago: https://www.amazon.com/gp/product/B019RHJRM8/ Modern ones give a whole lot more information than the one in the article.

Out of curiosity, why did you buy a power meter? Does it help with troubleshooting hardware?

I don't remember why I got the older one, but the USB-C one was mostly just curiosity - I'd heard that wireless charging was inefficient compared to wired charging and wanted to see how much.

Re: They make USB-C cables with displays now

#125

Post by jimbobthrowawy »

jmhammond wrote: post #120
hansvm wrote: post #56

Earlier quoted context omitted.

I'm all for some privacy protections, but doesn't 2-party consent cover that particular use case already? In CA, it swings a bit far the other way, and if you have a hidden mic recording a business lying through their teeth with the intent to defraud you, you might have a little wiggle room, but the recording is likely to be thrown out of any civil actions (and some criminal actions).

In Kansas, we’re a 1-party consent state, which gets us back to the previous commenter. Now pardon me while I scoot these potted flowers closer to you…

Don't you have to be party to the conversation to be 1-party? Should still be illegal to record one you're not a part of. (if such laws even apply in person rather than just over phones)

Re: They make USB-C cables with displays now

#126

Post by jimbobthrowawy »

tecleandor wrote: post #102

I'd be very wary of a $7 cable that claims to be USB4.

Does usb4 require any circuitry in the cable? I'd expect a 20-odd connector cable to be available for $7 (direct from china) pretty easily. I haven't bought many, but the best type C cables (usb3) I ever bought were €2.12 each.

Re: They make USB-C cables with displays now

#129

Post by technofiend »

rjh29 wrote: post #98
theodric wrote: post #90

These power meter cables have been out for a couple years, but it's only recently that manufacturers have caught on that previously the display would be upside down for most(?) people (or 100% of people who are me, anyway) when plugged in on the left side of the machine. Which I find hilarious, because the pictures in the AliExpress listings always showed the cable plugged in on the left, display upside down, like it…

USB-C has no orientation so I don't understand. You can just flip the cable.

The cables have an led which assumes a single orientation for text. You can only read the text right side up if it's plugged in one specific way.

Re: They make USB-C cables with displays now

#130

Post by oopsallmagic »

cosmojg wrote: post #62
hackernewds wrote: post #52

Earlier quoted context omitted.

those are not regulations

Industry-imposed regulations (as opposed to government-imposed regulations) are still regulations, and payment processors have teeth.

Nobody calls them regulations, come now.
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