Comment by Vogtinator

8 hours ago

AFAIK that's just when plugging in a USB 3 device into a USB 2 port or using a USB 2 cable.

> that's just when plugging in a USB 3 device into a USB 2 port

Dell XPS laptops (and some others) can also warn if the charger isn't providing the full wattage the laptop is rated for. This warning is an option that can be turned off in the BIOS settings.

I usually turn it off because I sometimes intentionally do day trips with a smaller/lighter portable charger which delivers 45w to my laptop which can need up to 65w due to having a discrete GPU. However, 45w is more than sufficient to charge the laptop during normal use on the Balanced power plan with iGPU. I only need more than 45w when gaming with the discrete GPU active.