OpenGL problem :No image displayed under Linux (MdK 10.1)

Questions about Anatomist manipulation

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pallier
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Joined: Mon Dec 12, 2005 11:01 am

OpenGL problem :No image displayed under Linux (MdK 10.1)

Post by pallier »

Hello,

1. No image would display in Anatomist. An error message "no GL list" apppeared on the console.

2. Running glxinfo revealed "direct rendering: No"

3. The Problem was solved by moving libGL.so* away from /usr/X11R6/lib: this Mesa lib prevented the nvidia libGL to be used...
(thank you Denis!)



Christophe
Christophe Pallier
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riviere
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Post by riviere »

Yes, just a few precisions:
- this kind of problem only happens on machines with nvidia 3D cards and nvidia driver
- it only happens on linux distribs that still have OpenGL libs in /usr/X11R6/lib instead of /usr/lib (the standard place now)
- it is caused by the nvidia driver installation which replaces the system OpenGL library by one from nvidia, but the installer only looks for the system lib in /usr/lib, not in /usr/X11R6/lib, so it doesn't correctly remove the library if it is located there, and the wrong one gets loaded at run-time.
Denis
mdesco
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Joined: Fri Apr 21, 2006 10:32 am

libGL problems as well

Post by mdesco »

Hi,

I have the same problems and moving libGL.so* out of /usr/X11R6/lib does not help. I still cannot visualize anything.

Any ideas?

thanks

Max
Manik
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Joined: Fri Mar 05, 2004 1:00 pm
Location: INSERM U836, Grenoble

Post by Manik »

If you have installed the nvidia driver, you can check if it works using glxgears (if it is installed on your computer). The speed is very high if the driver works :
[manik@pclx8 testData]$ glxgears
28771 frames in 5.0 seconds = 5754.200 FPS

Could you give more information about what is installed on your computer and what you do to see the problem ?
Manik Bhattacharjee
INSERM U836
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