View Full Version : glut on a linux laptop

03-20-2002, 09:08 AM
I installed glut on my linux laptop
but I can't get any of the test programs
to run. I get an error message that the
X server doesn't support the GLX extension.
At the same time, 'xdpyinfo | grep GLX'
returns 'NV-GLX' (?!).

My setup: Dell Inspiron 8100, NVidia GE Force 2 Go, Slackware 8.0, kernel 2.4.5, XFree86 2.4.5, latest NVidia GLX drivers (2802),
glut-3.7.1. All GL/GLX/GLUT libraries, header
files seem to be in place, glut itself plus the test programs compile without problem.
The error message I get is at run time.


03-20-2002, 10:52 AM
Some questions first:
Do some other OpenGL programs work (Mesa demos or other)?
Did you follow the Nvidia installation manual for XF86Config?:
then all you need to do is find the relevant
Device section and replace the line:

Driver "nv"


Driver "nvidia"

In the Module section, make sure you have:

Load "glx"

You should also remove the following lines:

Load "dri"
Load "GLcore"

Check this for the Module section...

03-20-2002, 10:41 PM
Yeah, it turned out that the GLX module was not being loaded...
I'd been switching between several XFree86 cconfig
files and apparently the last one I used had the respective
line commented out. Now the glut programs run just fine.

Of course, I was "mildly" disappointed to find out that NVidia's
GLX doesn't have support for various useful extensions,
such as Polygon Offset, and Overlays, but I guess I'll have
put up with that while I'm working outside of the RealityEngine
graphics domain http://www.opengl.org/discussion_boards/ubb/smile.gif)