Ubuntu 10.04 で Qt を使用しています。プログラムのインストールプロセスの後、ここ[http://www.vtk.org/Wiki/VTK/Examples/Instructions/ForUsers]で説明されている指示に従って、vtkの例でテストしようとしました。
しかし、次のようなエラーが発生します。
Starting /home/taha/Downloads/VTK/Examples/Tutorial/Step1/Cxx/Cone...
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".
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".
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".
ERROR: In /home/taha/Downloads/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 398
vtkXOpenGLRenderWindow (0x9812928): Could not find a decent visual
The program has unexpectedly finished.
/home/taha/Downloads/VTK/Examples/Tutorial/Step1/Cxx/Cone exited with code 0
これを修正する方法は?