Xmanager Knowledge Base

I get 'Xlib: extension "GLX" missing on display' error when launching an X application

Last modified: Wednesday, September 2, 2009 11:57 PM


When you launch an X application, you get the following error message and the application fails to start:

Xlib: extension "GLX" missing on display


This problem may occur when the X application requires OpenGL support and you are using Xmanager Standard.

To resolve this problem, use Xmanager Enterprise instead. OpenGL is supported in Xmanager Enterprise only. You can download Xmanager Enterprise at:


Also, you can try disabling the 3D feature on the X application. There are some X applications that support both OpenGL and non-OpenGL based 3D mode. However, this option is application dependent and your application may not have this option. Also, using non-OpenGL mode may slow down the application performance. For more information, refer to the X application manual.

Note: For example, I-DEAS users can use "-dX3D" parameter when launching the application to disable OpenGL use. Application will still show 3D images.