4 ms·

The Raspberry Pi foundation has their own "official" USB-C power adapter as well (At least, they have it for pre-order). So I doubt it's the highest priority.

The Raspberry Pi foundation has their own "official" USB-C power adapter as well (At least, they have it for pre-order). So I doubt it's the highest priority. I can still see this getting fixed in a future revision, but I think it will be a while. It is an issue, but it doesn't make the pi 4 useless.

jws 7y ago
When I saw the official adapter was 5.1 volts I just mentally relabeled that port as “proprietary power port” and got their adapter. They fudged their power supply voltages up on previous models to handle drop in the regulators. I presume that will be an issue on these as well.
agumonkey 7y ago
I see it as an 'exercise left for the reader'
Traster 7y ago
This is going to be a really sticky issue for a consumer. Randomly not working with some subset of USB-C cables is the sort of thing you expect the engineering team to consider - and they missed it. How do you think the average enthusiast is going to figure out that their Pi4 no longer works because of the USB-C cable they're using? At best they'll decide the cable is faulty, use a different cable and probably bin the old one, at worst they'll just come to the conclusion the Pi is bricked and bin it.
- morsch 7y ago
  How do you think the average enthusiast is going to figure out that their Pi4 no longer works because of the USB-C cable they're using? Presumably they're going to search for pi 4 does not power on and get their answer as the first search result[1]. You know, the same way the average enthusiast figures out the other twenty seven roadblocks they stumble on during their RPi project. Not to minimize that it'll be an issue for those people who don't happen to have a compatible charger laying around. [1] For me, at the time of posting: https://hackaday.com/2019/06/28/power-to-the-pi-4-some-chargers-may-not-make-the-grade/ https://hackaday.com/2019/06/28/power-to-the-pi-4-some-charg...
catdog 7y ago
I agree, shitty bug but not the end of the world. The official power supply also seems reasonable priced and it's really difficult to find a good USB power supply which is capable of providing such currents in a stable enough way (that's also the official reason why they did an official one and I don't doubt it). So if you want to avoid issues of all sorts simply go with the official one.
timw4mail 7y ago
Also, I've used my phone changer and cord to power the Pi 4 without issues, so I'm not sure how common it would be to actually see the issue.

jws 7y ago

When I saw the official adapter was 5.1 volts I just mentally relabeled that port as “proprietary power port” and got their adapter. They fudged their power supply voltages up on previous models to handle drop in the regulators. I presume that will be an issue on these as well.

agumonkey 7y ago

I see it as an 'exercise left for the reader'

Traster 7y ago

This is going to be a really sticky issue for a consumer. Randomly not working with some subset of USB-C cables is the sort of thing you expect the engineering team to consider - and they missed it. How do you think the average enthusiast is going to figure out that their Pi4 no longer works because of the USB-C cable they're using? At best they'll decide the cable is faulty, use a different cable and probably bin the old one, at worst they'll just come to the conclusion the Pi is bricked and bin it.

morsch 7y ago
How do you think the average enthusiast is going to figure out that their Pi4 no longer works because of the USB-C cable they're using? Presumably they're going to search for pi 4 does not power on and get their answer as the first search result[1]. You know, the same way the average enthusiast figures out the other twenty seven roadblocks they stumble on during their RPi project. Not to minimize that it'll be an issue for those people who don't happen to have a compatible charger laying around. [1] For me, at the time of posting: https://hackaday.com/2019/06/28/power-to-the-pi-4-some-chargers-may-not-make-the-grade/ https://hackaday.com/2019/06/28/power-to-the-pi-4-some-charg...

catdog 7y ago

I agree, shitty bug but not the end of the world. The official power supply also seems reasonable priced and it's really difficult to find a good USB power supply which is capable of providing such currents in a stable enough way (that's also the official reason why they did an official one and I don't doubt it). So if you want to avoid issues of all sorts simply go with the official one.

timw4mail 7y ago

Also, I've used my phone changer and cord to power the Pi 4 without issues, so I'm not sure how common it would be to actually see the issue.