Graphics does not work on recent install of Matlab_202​1b_Linux_x​86-64 - run icon is unavailable, also, can't execute script files explicitly.

I have the above problem after recently installing matlab. The error messages coming up are:

Gtk-Message: 21:25:02.923: Failed to load module "pk-gtk-module"

Gtk-Message: 21:25:02.923: Failed to load module "canberra-gtk-module"

When I try to install package gtk3-devel-3.22.2 using sudo dnf install gtk3-devel-3.22.2 the following error message comes up

/usr/bin/sudo must be owned by uid 0 and have the setuid bit set,

so all my permissions have been messed up by the install. I now probably need to re-install linux.

How many times can I re-install and validate on this machine? I wish to execute Matlab programs on this, and another machine as a home project. Could you please advise me as to ehere I should go from here? Can I install an earlier version of Matlab if necessary?

Answer 1

[Chetan]

Hi @Bryan Wild,

I Understand that you're experiencing issues with GTK modules following your MATLAB installation on Linux. These warning messages about missing GTK modules.

Here's a solution to address the permissions and GTK warnings without needing to reinstall your Linux system:

1. Create a Startup Script:

• Open your terminal.
• Navigate to a directory where you'd like to place the startup script.
• Use the `touch` command to create a new script file:

touch matlab_start.sh

2. Edit the Startup Script:

• Open `matlab_start.sh` in your preferred text editor.
• Insert the following content into the script:

 #!/bin/bash
      export GTK_PATH=/usr/lib/x86_64-linux-gnu/gtk-2.0
      /path/to/matlab/bin/matlab

Make sure to replace `/path/to/matlab` with the actual path to your MATLAB installation.

3. Make the Script Executable

a. Back in the terminal, grant execution permissions to the script:

chmod +x matlab_start.sh

For additional information, refer the following MathWorks documentation:

• https://www.mathworks.com/help/releases/R2021a/matlab/matlab_env/remove-canberra-gtk-module-and-pk-gtk-module-messages.html
• https://www.mathworks.com/help/matlab/ref/startup.html

Thanks

Chetan