DDJ FLX4 not tunring on via USB C

Hi,

I connected my DDJ FLX4 via USB C to my laptop for the first time and the USB C from my computer was enough to power on my FLX4.

I played with it and then had to go out and when I came back home it didn't work anymore.

I connected my FLX4 in exactly the same way, but my laptop doesn't seem to be powerful enough to power up the controller anymore.

Absolutely NOTHING has changed in the meantime.

I'm on the same place, same laptop, same cable, laptop is not on battery and the cable is connected to the FLX4's "PC" output (not the "power" output).

Everything is the same, but my FLX4 doesn't power up anymore.

If I connect the controller to the mains in addition to the USB C connection to the PC, it lights up and everything works.

But my aim is to power the FLX4 solely with a USB cable between the PC and the controller, without having to connect it to the mains.

It works well on my older laptop.

What drives me crazy is that it worked once so it means my USB C port is powerful enough to power up my controller.

I tried everything to change the power management from my USB in the settings but nothing worked.

Any idea?