glxinfo | grep renderer
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
Extended renderer info (GLX_MESA_query_renderer):
OpenGL renderer string: Gallium 0.4 on AMD HAWAII (DRM 2.43.0 / 4.4.0-31-generic, LLVM 4.0.0)