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USB Type-C is still a mess

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51–60 of 231 posts

Re: USB Type-C is still a mess

#53

Not putting enough ports on devices is a crucial problem. Apple with their stupid single port is just idiotic. The best port selection with usb-c is on the 2015 chrome pixel laptop. 2 usb-c, 2 usb-a. Just having a single usb-c has caused endless pain, all so apple could sell stupid dongles. The new google pixelbook 2018 is a great form factor, except they only have 2 usb-c, they dropped usb-a. The reason was probably…

Apple with their stupid single port is just idiotic This is on a single specific device. The best port selection with usb-c is on the 2015 chrome pixel laptop. 2 usb-c, 2 usb-b You mean USB-A. Just having a single usb-c has caused endless pain, all so apple could sell stupid dongles. Nobody I know using MacBooks has a particular problem with this. A dongle would be required in most cases to connect to an external dis…

OTOH literally everyone I know with the new MBP has this problem. They used to be able to use the HDMI port, but now they need a smattering of adapters for HDMI and minidisplayport. They also have trouble with the adapter not working when hotswapping ethernet cables

Re: USB Type-C is still a mess

#54
I remember arguing with people when Type-C was new; they told me it would change the world, I told them it would never work.

The problem is... they made everything optional, and thus when a user sees a Type-C port, they have no idea what to expect. Will it work with a device that requires Thunderbolt? Will it drive a DisplayPort monitor? Will this charger charge their laptop? Will this charger charge their phone?

The answer to any of those questions is "it depends". Many Type C ports do DisplayPort. Many don't. Many Type C chargers will charge something that needs 5V, but not something that needs a higher voltage. The end result is that you end up with thousands of devices with the same physical connector that can't actually operate with each other.

My favorite USB C device is Wacom's Intuos Pro pen tablet thingie. It has 3 Type C ports and needs DisplayPort input, USB 2.0, and 20V power. So there is not a computer in the world that you can plug it into with one cable, because I've never seen a computer that can output 20V over Type C. To get around that it, it has three ports and ships with a power brick... so you have two Type C cables going into it at a minimum. So close... if only they would accept 5V power. (I did some measurements and it uses only a tiny amount of power that is well under what can be supplied with 5V, but they appear to have reused the power delivery subsystem from their nearly-identical laptops, which do really need a lot of power to charge the battery.)

I don't see the situation improving. When you have 3 versions of power delivery and at least 4 "alternate modes" to implement, nobody is ever going to implement them all. So people will always be connecting Type C peripherals to Type C computers and being disappointed. And there is no way for the user to predict what works, because it's not like anyone shares specifications of what's required ("this monitor needs 20V and DisplayPort Alternate Mode") ("this computer can supply 100W, and implements USB 3.1, DisplayPort Alternate Mode and HDMI Alternate Mode").

It failed. I look forward to USB Type D that has a more durable connector and doesn't allow "optional" extensions. Maybe that will work. But for now, it looks like I will be struggling with upside-down Type A connectors for the next ten years. Sigh.

Re: USB Type-C is still a mess

#55

Speaking as someone in the industry who's worked on Type C-enabled gadgets, half the bloody problem is that the Type C products offered by the major semiconductor companies are _terrible_. For sake of a simple example, consider designing a rechargeable flashlight. For whatever reason, you'd like it to be rechargeable over a USB-C port. You also want the flashlight to charge as fast as possible from whatever power sou…

Forgive me for sounding extremely ignorant. I know this is not my area of specialty and I admit I'm about to sound stupid. I want to admit this right off the bat. Can't you just hook up the VCC and ground from any USB charging IC to a type-c socket? It's all +5v right? I don't understand why the type of connector dictates how fast a cable should be useful for charging. That seems like it should be up to the simple ga…

Type-C offers charge rates up to 100W, which means the voltage is ramped to 20V.

There is an entire protocol to negotiate power delivery (including who charges who) http://www.usb.org/developers/powerdelivery/

Re: USB Type-C is still a mess

#56

Speaking as someone in the industry who's worked on Type C-enabled gadgets, half the bloody problem is that the Type C products offered by the major semiconductor companies are _terrible_. For sake of a simple example, consider designing a rechargeable flashlight. For whatever reason, you'd like it to be rechargeable over a USB-C port. You also want the flashlight to charge as fast as possible from whatever power sou…

Forgive me for sounding extremely ignorant. I know this is not my area of specialty and I admit I'm about to sound stupid. I want to admit this right off the bat. Can't you just hook up the VCC and ground from any USB charging IC to a type-c socket? It's all +5v right? I don't understand why the type of connector dictates how fast a cable should be useful for charging. That seems like it should be up to the simple ga…

There's usually a lot more involved in charging a device, not to mention that USB-C can charge at 20V instead of just 5V. Charging speed is often based on current, but you also want to make sure you don't discharge too much current too quickly for various reasons (such as the battery capacity, and to prevent surges, etc). If you're curious, there are teardowns that go over chargers that discuss everything involved.

Re: USB Type-C is still a mess

#57
post #7

“Why doesn’t Apple just get rid of Lightning and use USB-C on their iPhones!” This is why. Ignoring the momentum Lightning had from being a few years older, this is a great reason not to switch. Sadly I know this has become a big problem for people on the new Macs. Plug a USB-C hub in? Now that port doesn’t do Thunderbolt or Display Port. How do you know that? Trial and error. Very un-Appley.

Looking at the last couple of years, I’d say “very Apple-y.” So unfortunate given they are the only large company in the space which prioritizes privacy.

Yeah, unfortunately that is quintessentially apple-y. Even the charging cable has seen endless unnecessary permutation, all proprietary and all expensive as hell. And mostly pointless. It's two wires. Two wires that carry a constant DC charge. Why so complicated?

I use my computer in a metal shop and my magsafe gathers iron filings, shorts itself and catches fire. I've gone through so many chargers. I've vowed that the next time it happens, I'm going to mill away part of this laptop's case and solder in a DC barrel jack. So much of apple design is about sleekness and cool factor, not actual robustness or effectiveness. I suppose this isn't the intended use case, but I feel like the use case apple has in mind is unrealistically safe and ideal. And rich.

I still like using a mac, as well as a windows machine and several linux distros. If you have a collection of tools in your tool shed, you want to have all sorts of different tools. Not just rows and rows of the same flat-head screwdriver.

Re: USB Type-C is still a mess

#58
post #5

I have 3 dongles and one power plugged into my macbook pro right now (ethernet could be optional, external monitor, USB, power). Maybe there will be a nice docking station sometime, but for now, it's dongle city, and picking up the laptop a bit to connect/disconnect each one every time I transition between mobile and desktop-replacement. Maybe something like https://nerdtechy.com/best-usb-c-docking-stations , though…

There are many many single-connector dongles that act like docking stations. The docking stations in your link look really really big. It's easy to find something that does 2x USB-A, ethernet, HDMI, and power on Amazon, for $60-$70 dollars. This will let you have a single cable to plug into to get your monitor and everything.

Re: USB Type-C is still a mess

#59
post #7

“Why doesn’t Apple just get rid of Lightning and use USB-C on their iPhones!” This is why. Ignoring the momentum Lightning had from being a few years older, this is a great reason not to switch. Sadly I know this has become a big problem for people on the new Macs. Plug a USB-C hub in? Now that port doesn’t do Thunderbolt or Display Port. How do you know that? Trial and error. Very un-Appley.

I've always thought that the Lightning connector is intended to work as a structural element as well. If you look at iPhone docks[1], they rely on the rigid connector to hold the weight of the phone at an angle. I don't think USB-C is designed for this?

[1] https://i.imgur.com/LspYnWj.jpg

Re: USB Type-C is still a mess

#60

Not putting enough ports on devices is a crucial problem. Apple with their stupid single port is just idiotic. The best port selection with usb-c is on the 2015 chrome pixel laptop. 2 usb-c, 2 usb-a. Just having a single usb-c has caused endless pain, all so apple could sell stupid dongles. The new google pixelbook 2018 is a great form factor, except they only have 2 usb-c, they dropped usb-a. The reason was probably…

> usb-c is on the 2015 chrome pixel laptop. 2 usb-c, 2 usb-b.

That'd be 2 USB-C and 2 USB-A and the 2018 ThinkPads have similar port selection. The 2017 X1 Carbon and Yoga already had.

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