When it comes to kernel mode-setting and open-source graphics drivers, the BSD operating system with the best support is presently FreeBSD. For those, however, using NetBSD, improvements are forthcoming with an investment by the NetBSD Foundation...
Just wondering... Are the BSD kernels different ? Shouldn't porting DRM to one of them be all that's needed modulo some minor differences ? Or is there more difference between BS distributions than between Linux distributions ?
The kernels are very much different. Unlike Linux distributions, which are collections of (somewhat) independently developed software put together to make an operating system, the BSD base systems are a single unit. The base systems are developed independently (though code and drivers are often ported between them). Ignore the fact that BSD stands for "Berkely Software Distribution" - it's a historical thing :-)
FreeBSD and NetBSD both started out from the same code, but that was about 25 (or more) years ago, so they've had plenty of time to diverge.
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NetBSD Is Paying For DRM With KMS/GEM
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