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I want to enable numlock at the login screen. numlockx is already installed. I've tried adding "greeter-setup-script=/usr/bin/numlockx on" to etc/lightdm/lightdm.conf, which by the way only works if it's in the [SeatDefaults] section (there appears to be an [XDMCPServer] section as well).

But then, numlock only works for the main computer while my thin client blacks out (no login screen or any screen at all). What's wrong?

Here's my etc/lightdm/lightdm.conf:

greeter-setup-script=/usr/bin/numlockx on


My thin client is an Ncomputing L300 with vSpace Server, running on Ubuntu 12.04.04. I cannot upgrade to 14.04 because the vSpace software doesn't support that yet.

Thanks for helping me out.

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