Graphics are plotted on the wrong X11 display

edit

I set up a sage server by adding the following line to my ~/.profile:

nohup sage -c "notebook(interface='', secure=True, automatic_login=False, directory='./sage_notebook.sagenb')" >/dev/null 2>&1 &

I run my sage server from an Ubuntu desktop.

When I login and try to plot graphics from my laptop, the figures appear on my desktop screen.

I tried looking for solutions to this online, but I could not find anything.