Displaylink installation fails on Ubuntu 18.04

[mabu]

Hello, I am trying to have an extra monitor through the DVI port of ThinkPad USB 3 Pro docking station (which has a DisplayLink label) with a Lenovo IdeaPad L340. All other drivers (sound, USBs) are working out of the box, but not the display.

I followed the installation steps here:
https://support.displaylink.com/know...rticles/684649

But that failed in the step of running the script:

sudo ./displaylink-driver-5.1.26.run 
Verifying archive integrity...  100%   All good.
Uncompressing DisplayLink Linux Driver 5.1.26  100%  
DisplayLink Linux Software 5.1.26 install script called: install
Distribution discovered: Ubuntu 18.04.4 LTS
WARNING: Version 1.7.0 of EVDI kernel module is already running.
Please reboot before attempting to re-install DisplayLink Linux Software.
Installation terminated.

After some googling; I did the following:

$ sudo ./displaylink-driver-5.1.26.run --keep --noexec

displaylink-driver-5.1.26$ sudo ./displaylink-installer.sh uninstall
DisplayLink Linux Software 5.1.26 install script called: uninstall
Distribution discovered: Ubuntu 18.04.4 LTS
Uninstalling
Removing EVDI from kernel tree, DKMS, and removing sources.
Stopping displaylink-driver systemd service
Failed to stop displaylink-driver.service: Unit displaylink-driver.service not loaded.
Failed to disable unit: Unit file displaylink-driver.service does not exist.
Removing suspend-resume hooks
Removing udev rule
Removing Core folder

Uninstallation steps complete.
Please note that the evdi kernel module is still in the memory.
A reboot is required to fully complete the uninstallation process.

It looks like the uninstall is not going through due to displaylink-driver.service does not exist. I rebooted several times; I even tried to run Ubuntu in console mode to avoid any issue with the X server.

Following the steps here did not help:
https://support.displaylink.com/know...ent-x-upgrades

Following the steps mentioned on nvidia did not help either:
https://forums.developer.nvidia.com/...ink-evdi/73626

- lsusb command result:

$lsusb
Bus 002 Device 004: ID 17ef:1017 Lenovo 
Bus 002 Device 003: ID 17e9:433f DisplayLink 
Bus 002 Device 002: ID 17ef:1016 Lenovo 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 174f:1176 Syntek 
Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 006: ID 0cf3:e500 Atheros Communications, Inc. 
Bus 001 Device 004: ID 17ef:1017 Lenovo 
Bus 001 Device 008: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy (MTP)
Bus 001 Device 002: ID 17ef:1016 Lenovo 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

- dkms status initially:

$dkms status
nvidia, 440.59, 5.3.0-59-generic, x86_64: installed

- dkms status after building DisplayLink / EVDI

$ dkms status
evdi, devel, 5.3.0-59-generic, x86_64: installed (WARNING! Diff between built and installed module!)
nvidia, 440.59, 5.3.0-59-generic, x86_64: installed

$uname -a
Linux 5.3.0-59-generic #53~18.04.1-Ubuntu

I would appreciate any kind of help; please let me know if further information is required.

Thanks.