Gray graphics window

General topics about Trelis/Cubit, such as localization, GUI, etc.

Gray graphics window

Postby Trelis User » Wed Feb 06, 2013 10:56 am

We have a Linux server with Ubuntu-12.04-amd64-server installed. After I installed "Trelis14.0-lin64.deb" and the package "libglu1-mesa-dev", I was able to run Trelis on my client computer (Linux, I use "ssh -X ... " to connect to our server). Everything looks find, except the graphics window does not stay activated. It becomes gray unless I click on it. How do I fix that?
Trelis User
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Re: Gray graphics window

Postby csimsoft Moderator » Wed Feb 06, 2013 10:59 am

The central window will be blank if the OpenGL libraries are not able to provide 3D rendering functionality.

1. In the case of a server/client setup, log in to the server:
ssh -X ...

2. Run the command
$ glxinfo

There are 2 things to check for:

1. glxinfo could return an error that indicates an invalid installation of the 3d rendering libraries. Consult the installation instructions for your Linux distribution to fix this.

2. glxinfo could return a mismatching information about server and client versions of libraries (see the server glx and client glx sections of the output). Sometimes this is caused by installing and uninstalling 3d drivers, but remnants are left over. The usual situation is a mix of Mesa and NVIDIA.
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