External display with closed laptop

[Alelucc]

I'm using a Lenovo dock with an xps 13 9343 running Ubuntu 16.04 to an external monitor connected with DVI, and with the lastest driver works fine. The problem arrive when I try to use the laptop with the screen closed, for working only with the external display. As soon as I close the lid begins to slow down the system, 5 seconds to open any window, but if I open the lid of the laptop and I enable it, the system starts to run well

[Mich]

The same exactly happens to me on Arch Linux, with XPS 15 9530 and an D3100 DisplayLink dock.
The rendering drops down close to 1FPS on the docked monitors, once I close the lid of my laptop.
I've posted here, but nobody really helped.. didn't find a solution on the internet either, and I do an extensive search from time to time.

[Kurohai]

I had this issue too. The issues posted to EVDI's github get the usual "Not our problem" response. Link to issue: https://github.com/DisplayLink/evdi/issues/61.

The only workaround I found is to disable all actions taken when lid is closed. There are settings in system settings, and there is a config file. I don't remember the file location, but I'll look for it and post an update.