On Mon, Jan 18, 2016 at 10:41:43AM +0100, Hvard Farberg wrote: > Is it the case that 3D acceleration does not work for AMD > PITCAIRN-based GPUs in X on OpenBSD 5.8? > > Is there any documents describing what features work on what GPUs?
Everything should work on northern islands cards and below. http://xorg.freedesktop.org/wiki/RadeonFeature/ should mostly describe the situation for those, but it refers to newer drm code/features in some spots. OpenGL 3.x is available on radeon with -current and 5.9. The handful of southern islands parts the kernel knows about (TAHITI/PITCAIRN/CAPE VERDE) need a version of Mesa compiled against a newish version of LLVM (which we can't use from xenocara currently) then Mesa needs to be compiled with a version of gcc from ports due to the llvm headers/libraries requiring things from recent c++ standards.
