Can't charge unless the laptop is off

I’m using my existing charger since I didn’t order the GPU, but it won’t charge unless I first turn off the computer, see the light go on and turn it back on. When it’s plugged in running Linux it doesn’t begin to charge, I hear the “plug in” and “plug out” sounds at the same time.

FW16 has some problems with some chargers.
What is the make/model of the charger?
Also, what BIOS version on the FW16 ?
Which slot are you plugging the charger into?

I’m using one of the back slots with a USB-C cord (the one labeled #1). Currently using the Steam Deck charger since I don’t need that much power. It clearly works, it just doesn’t work when I’m already booted into the OS.

That charger is underpowered, you’ll need at least 60W to charge and use at the same time.

I have a FW16 without the dGPU.
I have seen it draw 180W when charging the battery while switched on, but most of the time it draws 100W when charging the battery while switched on.
When battery is full, it drops to about 22W most of the time.

doesn’t matter, the little light is not on if I plug it in while it’s running so I discharge quicker

As said you will need 60w usb-power delivery capable charger to atleast somewhat charge the device when its on

I’ve a 30W charger, which absolutely works, and charges under very light loads.

that’s not true, when I plug in the charger before turning on the computer it works to charge it because it only idles at like 15w