7 ms·

The Pi4 does not work with all USB-C chargers. You may be lucky and it will work, or you may be unlucky and it will not work and you will have to buy another US

The Pi4 does not work with all USB-C chargers. You may be lucky and it will work, or you may be unlucky and it will not work and you will have to buy another USB-C charger (which again may not work). The reason is that the developers of the Pi4 made a mistake while designing the electronic circuit. They tried to design it themselves instead of copying it from the specification.

JshWright 7y ago
The other reason for is that the developers of the USB-C specifications left us with a terrible confusing mess where visually identical cables have different capabilities and behaviors.
- derefr 7y ago
  If it’s confusing, just don’t use it. They could have stuck with a micro-B charger, or a custom charger, and no one would have questioned it. Instead, they decided they were confident enough in their understanding of USB-C to implement it on their device. And they were wrong.
  - JshWright 7y ago
    I said the "other" reason. I am not absolving the RPi team here... The fact that they shipped this reveals significant gaps in their engineering and QA processes. That doesn't change the fact that USB-C is a mess, and that mess contributed to this failure.
  - TremendousJudge 7y ago
    >They could have stuck with a micro-B charger Somebody here said they were running into the maximum rated current for the port >or a custom charger Literally everyone would have complained
    - tracker1 7y ago
      I don't think anyone would complain much if they supported a popular barrel connector with a popular power draw. As it stands, I'll only ever use a Pi with a charger sold as working with it after all the 3B+ issues I had (7 chargers, none worked without a warning on screen).
seaborn63 7y ago
This is exactly what I wanted. Thank you kindly
mbilker 7y ago
The article states it is an issue with an eMarked cable, not the charger. With a different cable, the Pi 4 started up with the same chargers as it was no longer detecting the Pi as an analog audio accessory. The issue still lies with the Pi 4 for not having two CC resistors.
- ddingus 7y ago
  Can this be fixed with a dongle?

JshWright 7y ago

The other reason for is that the developers of the USB-C specifications left us with a terrible confusing mess where visually identical cables have different capabilities and behaviors.

derefr 7y ago
If it’s confusing, just don’t use it. They could have stuck with a micro-B charger, or a custom charger, and no one would have questioned it. Instead, they decided they were confident enough in their understanding of USB-C to implement it on their device. And they were wrong.
- JshWright 7y ago
  I said the "other" reason. I am not absolving the RPi team here... The fact that they shipped this reveals significant gaps in their engineering and QA processes. That doesn't change the fact that USB-C is a mess, and that mess contributed to this failure.
- TremendousJudge 7y ago
  >They could have stuck with a micro-B charger Somebody here said they were running into the maximum rated current for the port >or a custom charger Literally everyone would have complained
  - tracker1 7y ago
    I don't think anyone would complain much if they supported a popular barrel connector with a popular power draw. As it stands, I'll only ever use a Pi with a charger sold as working with it after all the 3B+ issues I had (7 chargers, none worked without a warning on screen).

seaborn63 7y ago

This is exactly what I wanted. Thank you kindly

mbilker 7y ago

The article states it is an issue with an eMarked cable, not the charger. With a different cable, the Pi 4 started up with the same chargers as it was no longer detecting the Pi as an analog audio accessory. The issue still lies with the Pi 4 for not having two CC resistors.

ddingus 7y ago
Can this be fixed with a dongle?