frederic@frederic-desktop:~$ glxinfo | grep render
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
direct rendering: No (If you want to find out why, try setting LIBGL_DEBUG=verbose)
    GLX_ATI_pixel_format_float, GLX_ATI_render_texture
OpenGL renderer string: Mesa GLX Indirect
frederic@frederic-desktop:~$