Definitely a displaylink bug. Runtime power management should suspend things when they aren't in use, which includes the entire tree of USB devices, so the kernel is working exactly as intended. The way the displaylink part uses a userspace driver works is a bit odd and issues like this are more likely to occur. Forcing the audio driver to never suspend is just a workaround (and a waste of power).

Worked For Linux Mint 18.3
 

I am running Linux Mint 18.3 (Ubuntu 16.04). I was also having the same problem with the D6000 "crashing" periodically. I can confirm that the modification to the pulse default settings fixed this issue for me. Thanks for finding that and sharing it.

No Display once unplugged from Dock
 

As Part of Laptop refresh we upgraded to Dell Latitude 7280 and 7480 with D6000 Dock.
The issue reported by few users were display goes blank after un-docking the Laptop and also once we place this back to dock also it will not give any display to monitors.
Only solution is manually shutdown and start again.

Any solutions to this very much appreciated.

Thanks
Akhil

Wrong Hardware ids d6000
 

Someone please give me the Hardware Ids of dell d6000 ...Vid & Pid
My device showing wrong ids
Any solution if someone face similar case ?

Turning wifi off appears to fix the issue
 

I'm using a Dell XPS 13 9370 with a D6000 dock on Ubuntu 18.04.2 LTS and was suffering from the dock resetting every few hours. turning off the wifi seams to have stopped this happening.

this is the thread that lead me to try that
https://plugable.com/2016/06/30/inve...ision-laptops/

good luck!