chris.h

Hey @attila, thank you for confirming. I noticed that if I first power up using usb and open waveforms it will power up correctly. Then if I plug in the aux power with it already powered via usb, it will draw current from the aux power with no issues. So it seems it’s able to use the aux power after initially being powered up using usb.

Setup: Dell Laptop running Ubuntu 22.04 (but also tested this on a windows 11 laptop) Analog Discovery 3 5V,4A power supply: https://www.amazon.ca/dp/B087LY41PV?ref=ppx_yo2ov_dt_b_product_details&th=1 Waveforms beta 3.22.10 Issue: After connecting the AD3 to external power supply and connecting it the usb to my laptop and then opening waveforms, I get the below error. I noticed if I unplug the external power supply and solely use the usb power supply and then startup waveforms again, I don't have this error. This functionality does not seem correct. I will look for another power supply but this one is also brand new so I dont think it would be the issue.