WG: Radeon HD R9 270X

[not]

I don't know why he wrote it all of card, marked as Not supported work 
fine but only with software raster.
I already wrote bug report see here:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191776
1)It is Gallium and Glamor only cards and hardware acceleration disabled 
by default it is mean what you need add options
  Option       "AccelMethod" "Glamor"
  in your xorg.conf (warning high experimental)
2)Request lasted xorg server 1.15.2, dri 10.2.3 and libdrm 2.4.54 for 
last xf86-video-ati 7.4.0
3)For mostly functional requested kernel implementation New DRM/KMS from 
linux kernel 3.15-3.16(we have only 3.8-3.9, update to 3.15-3.16 still 
not start ).