alt Hacker NewsYeah I have some devices that expect the manufacturer charger (I guess it's pre-negotiated to 19V or something) and I'm not even sure what was the point in giving it a USB C connector.
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soneil • yesterday at 7:48 PM
I have a couple of devices that are 12V over usb-c. The devices themselves are fine, but the wallwarts the mffr provided are just that - 12v over usb-c. No PD. If a device is expecting 5V, there's a healthy chance it'll .. stop expecting 5V.
We blame usb-c for all this, but it does feel like some mffrs are going out of their way to screw it up.
>I guess it's pre-negotiated to 19V or something
This kind of defect is extremely rare since this would basically be a USB killer frying every other device you plug it in to. 99% of the time it's the device is missing some resistors on the cc pins which signal to the charger to send 5v. Since usb-c it defaults to 0v until you request something. But USB-A has no CC pins so it just puts 5v out at all times.