Shabab,

Which Freesurfer Linux distribution was installed, and on what Linux platform?

Are you running this from the terminal, or remotely? through VNC?

Is the DISPLAY environment variable set to anything? Try unsetting it:

unsetenv DISPLAY

It may be that your graphics driver does not support the OpenGL GLX extensions, in which case you would need to check with your graphics card maker and possibly download and install an updated driver.

Nick

On Wed, 2006-12-13 at 15:56 -0800, Shahabuddin Ansari wrote:

Hi

I am getting the following error when I run tkmedit or tksurfer:

Couldn't create output file .xdebug_tkmeditfreeglut (tkmedit): OpenGL GLX extension not supported by display ':0.0'

It seems X11 server configuration is not set properly to run OpenGL applications. Any ideas?

Thanks Shahab

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