Plot function never works on Ubuntu

I am trying to run a plot function to get some figures but eventhough it does show up, it isn' t showing anything.

For example the below doesn't give me a figure.

x = 0:pi/100:2*pi;
y = sin(x);
plot(x,y)

[Harald]

Hi,

are you using one of the supported versions of Ubuntu?

https://www.mathworks.com/support/requirements/matlab-linux.html

Best wishes,

Harald

[Özgür]

Yes. I am using Ubuntu 20.04.3 LTS.

[Steven Lord]

When you say "doesn't give me a figure", can you clarify exactly what you mean?

Do you mean that no figure window opens up? If the answer is yes, does this open up a figure window? Can you show us what this command displays in the Command Window? Yes, leave off the semicolon because I want to see what's in the variable f.

f = figure

f = 
  Figure (1) with properties:

      Number: 1
        Name: ''
       Color: [1 1 1]
    Position: [1628 1512 583 437]
       Units: 'pixels'

  Use GET to show all properties

Also please show the output of this command.

f.XDisplay

ans = ':1'

Do you mean that a figure window opens up, but no axes appears in the figure? If yes, what does this command display?

ax = axes

ax = 
  Axes with properties:

             XLim: [0 1]
             YLim: [0 1]
           XScale: 'linear'
           YScale: 'linear'
    GridLineStyle: '-'
         Position: [0.1300 0.1100 0.7750 0.8150]
            Units: 'normalized'

  Use GET to show all properties

Do you mean that a figure opens up with an axes on it, but nothing appears on the axes? If yes, show the output of this command.

h = line(1:10, 1:10)

h = 
  Line with properties:

              Color: [0 0.4470 0.7410]
          LineStyle: '-'
          LineWidth: 0.5000
             Marker: 'none'
         MarkerSize: 6
    MarkerFaceColor: 'none'
              XData: [1 2 3 4 5 6 7 8 9 10]
              YData: [1 2 3 4 5 6 7 8 9 10]
              ZData: [1x0 double]

  Use GET to show all properties

The output of these commands may also be useful.

info = rendererinfo

info = struct with fields:
    GraphicsRenderer: 'OpenGL Software'
              Vendor: 'Brian Paul'
             Version: '2.1 Mesa 17.1.3'
      RendererDevice: 'Mesa X11'
             Details: [1x1 struct]

info.Details

ans = struct with fields:
             HardwareSupportLevel: 'None'
    SupportsDepthPeelTransparency: 1
       SupportsAlignVertexCenters: 0
        SupportsGraphicsSmoothing: 0
                   MaxTextureSize: 16384
               MaxFrameBufferSize: 16384

Answer 1

[Sandeep Mishra]

Hi Özgür, I understand that you are experiencing issue while using the 'plot' function to generate a 'figure' in MATLAB 2024b on Ubuntu OS.

To resolve the issue, you can refer any of the following work arounds:

1. Create a file named ‘java.opts’ in the directory where MATLAB is executed (e.g., /usr/local/MATLAB/R2024b/bin/glnxa64) and include the following line:

-Djogl.disable.openglarbcontext=1 

2. Run MATLAB using the following command in the terminal to override the graphics driver:

export MESA_LOADER_DRIVER_OVERRIDE=i965; matlab 

3. Launch MATLAB with software OpenGL by using the following command:

matlab -softwareopengl 

4. Turn off anti-aliasing for figures by setting the 'GraphicsSmoothing' property of the figure to 'off':

set(gcf, 'GraphicsSmoothing', 'off');   

You can also refer to the following MATLAB Answer to learn more about the workarounds:

https://www.mathworks.com/matlabcentral/answers/216942-plotting-and-opengl-error-on-linux-how-to-resolve

For more information, refer to the following MathWorks Documentation to learn about ‘Resolving Low-Level Graphics Issues’: https://www.mathworks.com/help/releases/R2024b/matlab/creating_plots/resolving-low-level-graphics-issues.html

I hope this helps you in resolving the issue!