Sivun https://help.ubuntu.com/community/RadeonDriver mukaan kortillesi pitäisi löytyä automaattisesti 3d-tuki.
Mitä sanoo komento cat /etc/X11/xorg.conf | grep Driver
Entä komento glxinfo | grep direct
Ensimmäinen sanoo
Driver          "kbd"
        Driver          "mouse"
        Driver          "wacom"
        Driver          "wacom"
        Driver          "wacom"
        Driver          "ati"
Jälkimmäinen taas 
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Error: couldn't find RGB GLX visual
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".