How do I stop seeing a green screen when using NX / NoMachine?

Sometimes, when resuming a suspended NX session (particularly from a different computer with a different monitor size or resolution), a green screen will be seen rather than the expected desktop session.

To fix this, access the NoMachine menu by hovering your mouse over the top right hand corner of the NX session, then select 'display', ensure 'fit to window' is not enabled and 'resize remote screen' is enabled, then 'done' (twice, to exit the menu system).

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High Performance Computing