I cant activate NumLock on startup in 15.04 procedure that always worked up to and including 14.04 NumLock is on in bios, then turns off during startup. Responds when NumLock pressed after startup, then NumLock light goes out.
Follow these instructions and you should be all set
Open a terminal
sudo apt-get install -y numlockx sudo nano /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
Add this to the bottom of the script:
And you should be golden.
If numlock turns off after you login add
/usr/bin/numlockx on to startup applications.
https://help.ubuntu.com/community/NumLock for additional info if you need it