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How to install the displaylink driver for D6000 over kernel headers v6.2?

After an automatic upgrade to the new kernel headers v6.2, I was not able to reinstall the official displaylink driver v5.6.0 (to get Dell Docking Station D6000 to work) under Linux, as the installation fails to make evdi version 1.11.0 for the new headers.

Note: the support for the kernel headers v6.2 started only with evdi v1.13.1

weshouman
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    This question (and answer) look like a better fit for [Super User](https://superuser.com) than Stack Overflow. – Moshe Katz Aug 20 '23 at 23:55

1 Answers1

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The process of installation has the following steps:

Install evdi

We'll need first to install the new version of evdi v1.13.1 or newer.

First install the dependencies pip install pybind11, then install evdi, which could be installed using the script in this gist

Install Displaylink without evdi

Hint: Be careful while following this section, it's highly not recommended to edit a script without knowing the exact content of it.

That needs editing the content of the displaylink.sh file. to do that we

  1. Extract the setup script
chmod +x displaylink-driver-x.x.xx.run  # Make the installer executable
./displaylink-driver-x.x.xx.run --noexec --keep
  1. Edit the script at displaylink-driver-x.x.xx\displaylink-installer.sh to always report evdi to be installed, I've done that by updating this section
 dkms install "${EVDI}/module" 2>&1 | tee "$dkms_log" | sed -E "s~$make_log_regex~$evdi_make_log_path~"
  local retval=${PIPESTATUS[0]}
  local retval=3

  if [[ $retval == 3 ]]; then
  1. Run the installer sudo ./displaylink-installer.sh install

Load the kernel module

We should expect the kernel module to be loaded directly after a reboot, to ensure that run sudo modprobe evdi, for my case I received the error

modprobe: FATAL: Module evdi not found in directory /lib/modules/6.2.0-26-generic

However the file find /lib/modules/$(uname -r)/ -name evdi.ko was available at the location /lib/modules/6.2.0-26-generic/kernel/drivers/gpu/drm/evdi/evdi.ko. While at the same time sudo insmod /lib/modules/6.2.0-26-generic/kernel/drivers/gpu/drm/evdi/evdi.ko worked, and sudo dmesg | grep evdi showed a couple of messages, while the displays connected to the docking station were not found yet. In my situation that implied that the module dependency database needed a rebuild, which was achieved by sudo depmod -a.

Immediately afterwards the displays worked

weshouman
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