I have exactly the same problem.
DisplayLink driver: 5.5
kernel: 5.13.0-41-generic
evdi: 1.9.1 cannot be compiled with this kernel.
ubuntu: 20.04.4
I tried to install evdi driver 1.10.1 but it supports kernel 5.15 minimum
I installed installing kernel 5.15 on my ubuntu 20.4.4
I also tried older versions of DisplayLink driver that supported this kernel. EVDI driver cannot be compiled.
Any solution to
this problem? It seems it has been already a long time since this problem exists.