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Simultaneous Charging and Display Output from single Type-C port?


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#1

pricekitty4427
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Posted 01 October 2018 - 03:14 PM

Anyone know if it's possible to use a single thunderbolt 3 port to charge and also run an external display? I've seen dongles that are Type C to HDMI + Type C but I don't know if they would work for this purpose. Thanks!

#2

LinuxUser
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Posted 01 October 2018 - 04:26 PM

I the USB Power Delivery specs say that a USB-C device can provide power to its USB-C host as well as the host powering the device, which would make that possible. And it does work with Alternate Modes. That leaves the main question as to how the dongle handles it. I just had a quick look at Ascent, and all the USB-C -> HDMI + USB-C dongles I saw supported charging / USB PD, and in fact at least one cannot use the second USB-C port for data.


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