DisplayLink Forum - Lenovo LT1421WD stays black with Ubuntu 16.04

xrandr tells me:

Code:

jan@jan-Dell-System-XPS-L322X:~$ xrandr

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192

eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 294mm x 165mm

   1920x1080     60.00*+  59.93    40.00  

   1680x1050     59.95    59.88  

   1600x1024     60.17  

   1400x1050     59.98  

   1280x1024     60.02  

   1440x900      59.89  

   1280x960      60.00  

   1360x768      59.80    59.96  

   1152x864      60.00  

   1024x768      60.04    60.00  

   960x720       60.00  

   928x696       60.05  

   896x672       60.01  

   960x600       60.00  

   960x540       59.99  

   800x600       60.00    60.32    56.25  

   840x525       60.01    59.88  

   800x512       60.17  

   700x525       59.98  

   640x512       60.02  

   720x450       59.89  

   640x480       60.00    59.94  

   680x384       59.80    59.96  

   576x432       60.06  

   512x384       60.00  

   400x300       60.32    56.34  

   320x240       60.05  

VGA-1 disconnected (normal left inverted right x axis y axis)

HDMI-1 disconnected (normal left inverted right x axis y axis)

DP-1 disconnected (normal left inverted right x axis y axis)

DVI-I-1-1 connected (normal left inverted right x axis y axis)

   1366x768      60.00 +

When I switch the display on I see red and blue stripes only.

Code:

xrandr --output DVI-I-1-1 --auto

Anybody any ideas?