Re: [Trisquel-users] Trisquel drivers for the ATI Radeon HD 4670 graphics card

[vitacell]

You can not have any 3d-2d or any graphics acceleration without non-free  
software if you use any ATI/AMD card. Modern AMD GPUs have free drivers, but  
still need non-free firmware loaded in the kernel for graphics acceleration.  
Without that non-free firmware you only get video output.