my computer is windows 10, I installed a ubuntu 18.04 by virtualbox.

I want to run a python program in ubuntu from my windows and with graphical output.

However after running the program, it always reported:

Could not find ':' in DISPLAY: needs-to-be-defined
Unable to init server: Could not connect: Connection refused
(Original:2079): Gtk-WARNING **: 14:39:33.441: cannot open display: 127.0.0.1:10.0

What I have done:

1: I did the setting in the /etc/ssh/sshd_config turned on:

ForwardX11 yes
ForwardX11Trusted yes

2: login with: ssh username@pc-name -X

3: changed the ip address:

$ export DISPLAY=127.0.0.1:10.0 # original was localhost:10.0

Do you know, what's wrong? Why I can not see the picture?

4

1 Answer

The Ubuntu side looks OK, but you need an X server on the Windows side. Windows does not come with an X server so you have to install one. There are free ones like vcxsrv you can get. Haven't used it myself.

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