Raspberry Pi 4 & Motorola Lapdock

To use a Raspberry Pi 4 in combination with a Motorola Lapdock one has to customize the screen resolution to 1366 x 768 pixel.

To set the screen resolution insert in:

 $ sudo nano /boot/config.txt

the following lines:

 # Motorola Lapdock setting:
 hdmi_cvt=1366 768 60

Save with ctr+o, return and ctr+x.