We weren’t able to reproduce problem. Are you sure that you set DisplayMonitorNotifications 0 on server side? Maybe you didn’t restart nxserver after changes (sudo /usr/NX/bin/nxserver --restart
).
Logs could help. When you reproduce problem – please pack ~/.nx folder folder on server side and send it to forum[at]nomachine[dot]com.
Its a virtual desktop and NoMachine version is NoMachine_5.3.12_5 and ubuntu14.04.
It looks that you have NoMachine free version so you probably mean remote desktop, so it’s physical – not virtual desktop.