The procedure below is mainly based on this description:¹⁾

1. install the following packages: linux-source, linux-headers-generic, libssl-dev, libdrm-dev
2. backup original files /lib/modules/$(uname -r)/updates/dkms/evdi.ko and /opt/displaylink/libevdi.so
3. download evdi source code from GitHub
4. change the sources as you want (i increased define MAX_DIRTS to 64)
5. goto sub-directory module and execute

   make -C /lib/modules/$(uname -r)/build M=$(pwd) modules

6. goto sub-directory library and execute

   make

7. finally replace evdi.ko and libevdi.so in your filesystem or install it

   sudo make -n -C /lib/modules/$(uname -r)/build INSTALL_MOD_DIR=updates M=$(pwd) modules_install