Dell D6000 dock resetting on Ubuntu 16.04

[Wunsz]

Originally Posted by k001

This seems like a device wants to sleep, and the kernel can't prevent it and is losing it.

That actually gave me an idea. I've attached the dell dock to USB described as 2-2.1 and did:

echo on | sudo tee /sys/bus/usb/devices/2-2.1/power/level > /dev/null
echo 2 | sudo tee /sys/bus/usb/devices/2-2.1/power/autosuspend > /dev/null

essentially disabling autosuspend on this bus. Will test how it works, but you may want to try it too.

Edit: For XPS 9560 USB-C Port it will be:

echo on | sudo tee /sys/bus/usb/devices/4-1.1/power/level > /dev/null
echo 2 | sudo tee /sys/bus/usb/devices/4-1.1/power/autosuspend > /dev/null