You need to build and reinstall drm-kmod-g20190710 and drm-fbsd12.0-kmod-4.16.g20201016 manually from ports, so module gets 12.2 stuff in it, pkg installs binary that is built on 12.1 and will not work on 12.2 properly. This is a known issue and fix :-) -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info