New (but 2016) Razer keyboard backlight cycles

I get my new-but-old Razer keyboard (Blackwidow Ultimate 2016) out of the box. (old Kubuntu, can't update or install stuff) And keyboard works, but the back-light annoyingly goes on and off every few seconds. I have no windows box to try and set it up. Any suggestions? And even if I do, will the setup hold or needs to be done on every reboot? Thanks, Joseph