Charging over usb-ports of laptop, slow/nothing

So, I am charging, or rather, trying to charge, my 5x. Since the charger supplied with it is back home, i am using some cables i bought on amazon, with type-C connectors. I plug these into my laptop, since I dont have a wall plug with usb port handy at work.

However, charging over the usb port seems to do nothing, or at least not charge my battery. Then I tried a little usb-micro to type-c converter plug on an older samsung charger which does plug in the wall, but that didnt improve it either.

I know the supplied charger works, and I know my car charger i got works too, both rapid charging too.

Any ideas? Are laptop ports not supplying enough amps?

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Charging over usb-ports of laptop, slow/nothing