Display not detected on Ubuntu 18.04 LTS
 

Hi,

I have two external displays connected to my laptop (Dell Latitude 7400, Ubuntu 18.04 LTS). I'm using a Dell D6000 docking station to connect one or both of the displays.

Sometimes DisplayLink detects a display but after some time the display goes black.
If I try to disconnect the displayport cable and connect it again, the display stays black.
When I go to Ubuntu settings and set the display setting "off" then I'm not able to set the setting back "on" because the display is not detected again.

I attached the DLSupportTool output.

Regards,
Kari Maijala