latest updates to Ubuntu 16.04 cause logout on external monitor connection

[micsnare]

Hi,

I can confirm the very same problem both on 1.2.1 and 1.3.52
It is definitely the docking station (displaylink driver) because when I connect my external monitor through a different adapter (simple usb-c to hdmi adapter) the performance is perfectly fine and normal.
When connected the docking station (Dell D3100) using the display link drivers it's terribly slow, unusable even.

Please find my debug logs attached.

I've even tried downgrading to 1.2.1 but unfortunately it didn't improve the situation.

I'm running a Kubuntu 16.04.2 (kernel: 4.4.0-77) on an Dell XPS 13.

any idea how this could be fixed?

please let me know if you need any other information to troubleshoot this problem.

cheers,
theresa