> Well it works on my card in Ubuntu so > not sure it's because of the ATI drivers or the Radeon one > in X worked, I'll check out Ubuntu later to see which it > was... > >
3d acceleration is not currently supported for ATI video cards using the linux-libre kernel. It is a problem of some blob that have been removed from the linux kernel (ubuntu uses the standard non-free linux kernel) 3d acceleration only works with most of Intel video cards and with some Nvidia cards using Trisquel 4.5 and the Nouveau driver together with the libgl1-mesa-dri-experimental package. I hope in the future the 3d acceleration will be available also for ATI cards and linux-libre
