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Why is MATLAB trying to connect to X11 server even when started with -nodisplay ?

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I just upgraded from 2016b to 2019a and started seeing this warning when I launch MATLAB:
[~]$ matlab -nodisplay
PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused
PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused
In fact, even this:
[~]$ matlab -nojvm -nodisplay -nosplash -nodesktop
PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused
PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused
To be clear everything seems to work as expected after startup. I just don't like seeing the warning.
Any ideas appreciated,
--naor

Answers (1)

Santhosh A V
Santhosh A V on 28 Jan 2020
Hi Naor,
Can you let me know whether the X11 forwarding is enabled in your Putty Configuration.
Thanks
Santhosh

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