151–160 of 276 posts
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I think he was talking about DisplayPort over USB-C. Thunderbolt is something different.
That's probably indicated when the posted stated that they "...plugged it into a different USB C port..." Considering USB c != thunderbolt
Earlier quoted context omitted.
I think he was talking about DisplayPort over USB-C. Thunderbolt is something different.
That's probably indicated when the posted stated that they "...plugged it into a different USB C port..." Considering USB c != thunderbolt
Headline from the official thunderbolt website: "Thunderbolt™ 3 – The USB-C That Does It All"
-- https://thunderbolttechnology.net/blog/thunderbolt-3-usb-c-d...
This whole sub-thread is just a really good hilarious demonstration of the whole problem, nobody has any idea how to figure out what a given cable or port will do anymore. We can't even talk about it without getting confused. (But can still be snarky to others who we think got it wrong, even when we're wrong ourselves. It's the internet, we'll never run out of superciliousness!)
The new logos show the word 'certified'. Wait for the "super-certified" and "ultra-certified" USB logo variants in two years, to help clear up the newly-latent confusion. One new logo shows the word 'charger'. Wait for the "super-charger" and "ultra-charger" and "really really a charger" variants in three years, to help clear up that newly-latent confusion. Leibnitz had a hypothesis that all one needed was one base w…
Certification costs money, and you might fail. No consumer really cares (or probably no consumer understands) what buying a "certified" USB thing even means.
If your existing USB things don't have the red white and blue USB logo on them, they're not certified. Info: https://www.usb.org/logo-license
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A 2m cable with 100W charging (the highest currently, but not for long) and video using Thunderbolt 3 is £70 inc sales tax, it's also stiffer and heavier than other cables. How many of those do you plan to just have lying around for convenience? My XPS 15 already takes more power than that so has its own charger with a physical USB C connector (but also accepts standard USB C chargers with lower wattage). The next ve…
> A 2m cable with 100W charging (the highest currently, but not for long) and video using Thunderbolt 3 is £70 inc sales tax, it's also stiffer and heavier than other cables. How many of those do you plan to just have lying around for convenience? I would get 5 if I could be sure they really will work reliably with every device in every case possible and the standard won't change in a couple of months. I almost feel…
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> Finally, a clear logo showing if a cable supports 240W. Trademark law never stopped dodgy Amazon cable sellers before though.
You can send back a cable that doesn't match a well established spec, you'll have lost about an hour of your life. It's harder to return a cable that had some numbers but not really matching what you're trying to do with them, and arguing back and forth about wether your iPhone 14 was supposed to transfer data at full speed with their "high speed" "iPhone serial A23XXXX~A324XXXX supported" cable. And you'll already h…
- a few minutes to order the cable
- 2 days for the cable to arrive
- ~2 hours to realize it does not work, complain, initiative a refund, print a return label, and drop it off at a post office
- another 2 days to wait for the next cable.
The 'U' in USB has become a bit of a joke.
As in,
Q: Will this cable work?
A: Well... there's a universe of possible answers...
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In a 20V DC barrel jack case, so you don’t plug in a device with 4 ohms of resistance to a $2.99 charger spec’d (and only capable) to only deliver 20W of power. (Realistically, not every one of those chargers will have a current limiting supply inside.)
I think you've rebutted your own point there, laptops cost hunders or thousands, whats with $2.99 power supply? You spill coffee on the laptop and the power brick burns your house down? I shorted many laptop power supplies while using them to test LED's strips, all of them seemed to have current limiting.
In an alternative timeline where DC barrel jacks were the standard form factor, you'd have just as many sellers of the cheapest possible power supply in that form factor as you do in the USB-A form factor today. Engineering choices have to take into account the reasonably foreseeable uses and misuses of a design. In this case, having current relating to the barrel diameter seems reasonable. (A phone might prioritize thin-ness and doesn't need a lot of power. A 100W piece of desktop/benchtop gear or a laptop can better afford the increased diameter of the higher current supply. Not to mention that it gives a somewhat intuitive sense to non-engineers.)
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It was never that simple. Your serial cables had peripheral or null-modem (I have a serial cable marked "MIDI" I have no idea what is different). Parallel port cables could be SCSI cables instead. Some cables didn't have all pins wired to save money. With PS/2 ports you had to get the mouse and keyboard the right way around despite having the same port.
It got pretty simple for a while when old serial & parallel ports were phased out in favor of USB. Also VGA worked for a very long time even after DVI and HDMI appeared on the scene. (I never had as much trouble with connecting displays as I do today)