zic@Ubuntu:~$ glxinfo | grep OpenGL
OpenGL vendor string: Tungsten Graphics, Inc.
OpenGL renderer string: Mesa DRI Radeon 20060327 AGP 4x NO-TCL
OpenGL version string: 1.3 Mesa 6.5.1
OpenGL extensions:
zic@Ubuntu:~$ glxinfo | grep glx
server glx vendor string: SGI
server glx version string: 1.2
server glx extensions:
client glx vendor string: SGI
client glx version string: 1.4
client glx extensions: