OK, I understand. So in my case, on my system I currently have :
- 64-bit kernel
- both 64/32-bit libdrm packages
- both 64/32-bit xorg-x11-drv-ati packages
- both 64/32-bit mesa-dri-drivers, mesa-libGL and mesa-libGLU packages
- both 64/32-bit libtxc_dxtn packages
- a 32-bits game
I shouldn't expect 3D problems ?
Yes, it should be ok with that config. Better compile a 32-bit glxinfo and glxgears and see if you get direct rendering. I think you don't need 32-bit xorg-x11-drv-ati. Also libdrm is no longer required for Gallium.