DRM [FreeBSD WIKI]

Information About FreeBSD Graphics: DRM-specific Notes

The way you need to manage your Direct Rendering Manager (DRM) bits depends on your OS update strategy.

In either case you will need to install the graphics/drm-kmod metaport. It should install the correct things for you for your OSVERSION as reported. See the table below for further explanation of what it will try to install.

Release Versions

If you are running a release version of FreeBSD:
- You can use pkg install to install the graphics/drm-kmod metaport.
- You can use pkg upgrade to stay in sync.

STABLE or CURRENT Versions

If you are instead running stable or current:
- “When using stable (or current) it is important that the kernel and the drm-kmod modules are in sync.” – NiclasZeising, in PR 245923, 20200427. Therefore:
  - You will have to build and install the graphics/drm-kmod port manually, using the Ports Collection.
  - Whenever you rebuild the kernel, you will also need to rebuild and reinstall graphics/drm-kmod to stay in sync.

The Table Of Truth According To graphics/drm-kmod/Makefile:

OSVERSION range	package required	Linux equivalent	archs	comments
< 1103000	not supported			Please see Supported FreeBSD releases.
>= 1103000 && < 1200000	drm-fbsd11.2-kmod	4.11	amd64
>= 1200000 && < 1200058	not supported
>= 1200058 && < 1300000	drm-fbsd12.0-kmod	4.16	amd64 i386
>= 1300000 && < 1300029	not supported			You must upgrade to a newer -CURRENT.
>= 1300029	drm-current-kmod	4.16	amd64 i386 powerpc64	Recommended choice for most users of -CURRENT.
>= 1300029	drm-devel-kmod	5.3	aarch64 amd64 i386 powerpc64	For graphics developers using -CURRENT. Try at your own risk. Expect to be able to provide debugging information.