Apple implements the USB-C/USB PD specs to a t and is unforgiving if you don't do either.
At work, our quick test for if a device implements USB PD correctly is to plug it into an Apple power supply (optionally with a PD protocol sniffer in line). If it doesn't work (either no/intermittent VBUS or the wrong VBUS), it's always been the case that the device is doing something wrong.
It can be annoying but strictly speaking their fault.
At work, our quick test for if a device implements USB PD correctly is to plug it into an Apple power supply (optionally with a PD protocol sniffer in line). If it doesn't work (either no/intermittent VBUS or the wrong VBUS), it's always been the case that the device is doing something wrong.
It can be annoying but strictly speaking their fault.