Keyboard Volume Control Keys

[Jon LaBadie]

Running F23, mate desktop and compiz.

Each time I login the three volume keys on my
keyboard cause no action.  If I go into the
program "/usr/bin/mate-keyboard-properties"
either as a CLI or the System->Preferences menu
and immediately exit the keys work as expected.

Can anyone suggest a way to activate the volume
keys automatically on login?

Thanks,
Jon