Upside down display of graph

i am currently using Matlab r2015a in ubuntu 18.04.graph window is being displayed upside down .how to fix it?

here's my code:

>> x = [4 5 6];

>> y = sin(x);

>> plot (x,y)

And the display

[Walter Roberson]

Unless somehow the viewpoint has become from underneath then you have a display driver problem .

II have heard of this before but it was for older releases and very old vendor display drivers such as for vendor driver for Intel HD1000 graphics .

Answer 1

[Yair Altman]

Try to do the following, step-by-step, until you find one of them solves the problem:

set(gcf,'renderer','opengl');
opengl('software');  % now plot and check
opengl('hardware');  % now plot and check
set(gcf,'renderer','painters');  % now plot and check

[Jeremy Reyes]

The 4th option helped, thank you.