ii  libgl1-mesa-dri                        8.0.4-0ubuntu0.3                        free implementation of the OpenGL API -- DRI modules
ii  libgl1-mesa-glx                        8.0.4-0ubuntu0.3                        free implementation of the OpenGL API -- GLX runtime
ii  libglapi-mesa                          8.0.4-0ubuntu0.3                        free implementation of the GL API -- shared library
ii  libglu1-mesa                           8.0.4-0ubuntu0.3                        Mesa OpenGL utility library (GLU)