Displaylink Ubuntu 20 Troubleshooting

reset-displaylink-ubuntu.sh

# After updating ubuntu - displaylink would no longer work.
# Checking the syslog the following messages showed up:

# systemd[1]: displaylink-driver.service: Scheduled restart job, restart counter is at 1.
# systemd[1]: Stopped DisplayLink Driver Service.
# systemd[1]: Starting DisplayLink Driver Service...
# sh[1933]: modprobe: ERROR: could not insert 'evdi': Invalid argument
# sh[1958]: Module evdi/1.7.0 already installed on kernel 5.8.0-48-generic/x86_64
# sh[1934]: modprobe: ERROR: could not insert 'evdi': Invalid argument
# systemd[1]: displaylink-driver.service: Control process exited, code=exited, status=1/FAILURE
# systemd[1]: displaylink-driver.service: Failed with result 'exit-code'.
# systemd[1]: Failed to start DisplayLink Driver Service.

# Download drivers from Displaylink
# https://www.displaylink.com/downloads


# UNINSTALL evdi

# To figure out your evdi version:
dkms status evdi
# evdi, 1.7.0, 5.8.0-48-generic, x86_64: installed

# put the first set of numbers here and remove it:
sudo dkms remove evdi/1.7.0 --all

# reboot
reboot

# Then install the displaylink drivers again
sudo ./displaylink-driver-5.3.1.34.run

# this will prompt you to reboot - after you have done that the displaylink adapter should work again