How to disable WebGL and use OpenGL

I'm trying to use siteviewer for some things, but it times out and doesn't give me anything. Comparing to other PCs that I know they work I've noticed they use a different graphics rendered, OpenGL, while my system uses WebGL. I've tried using commands for changing it such as: opengl('save','software') or matlab -softwareopengl, but it doesn't work. My pc has a 3060Ti and the others don't even have a graphic card and I also tried to change nvidia graphic options but to no avail.

Is there any other form of changing it?

Answer 1

[Chetan]

Hi @Miguel Ángel Bonilla Rojas,

It seems like you're encountering problems with `siteviewer` in MATLAB because of a WebGL and OpenGL conflict.

You can follow the following steps to fix this issue:

• Force Software OpenGL: Add `-softwareopengl` to the MATLAB shortcut's target to default to software OpenGL.
• Update NVIDIA Drivers: Ensure your NVIDIA drivers are current to avoid compatibility issues.
• Address libstdc++.so.6 Incompatibility: Follow the workaround if you encounter library compatibility issues: https://www.mathworks.com/support/bugreports/1297894
• Use MATLAB with Software OpenGL: If changing the graphics driver isn't an option, start MATLAB with from the Linux Terminal:

matlab -softwareopengl

To always start MATLAB in this mode, use the following in the MATLAB Command Window:

opengl('save','software')

To revert, use:

opengl('save','none')

If problems persist, try these workarounds:

Hardware OpenGL Renderer : Create a 'java.opts' file in MATLAB's start directory with:

-Djogl.disable.openglarbcontext=1

https://www.mathworks.com/help/matlab/matlab_env/java-opts-file.html

Painters Renderer: Start MATLAB with the `-noopengl` option from the terminal:

matlab -noopengl

For further assistance, refer to these MathWorks Documentation links:

https://www.mathworks.com/matlabcentral/answers/342906

https://www.mathworks.com/help/parallel-computing/identify-and-select-a-gpu-device.html

Thanks

Chetan