What change have you made?
Please check if can find reference from NVIDIA Jetson Linux Developer Guide : Audio Setup and Development | NVIDIA Docs
Issue still happened if unstalled the driver?
yeah, what should i do next
Actually, we’re not sure what have been done on your device.
And if uninstalled the Ch340 driver sitll happened, I will suggest to reflash your device to a clean build which is Nvidia provided JetPack SW.

