My usb mouse stops working when i plug in my aux
2019 MacBook Pro
macOS Mojave 10.14.6
If I plug in my headphones my USB mouse and keyboard stops working immediately
Question marked as
If it is a USB mini-plug that talks wirelessly to mouse and keyboard, probably talks on 2.4 gHZ frequency, which can be interrupted. Many find even a 2.4 GHz wifi disrupts mice and they switch to 5 gHz wifi. In your case, you may want to get a USB extension cord (they do make them) to move that antenna farther away from the audio plug and its possible interference.