thank you, that was it. Have it hooked up to a RPI2 now to test it, and there it works. Now I need to test it in the gotek
Feeling rather stupid because I did not even consider the contrast setting LOL. Thank you idrougge.
Update: Hooked it back up in my temporary circuit for the gotek, and it works straight up.
Now I just need to decide how to make nicer permanent solution and how to mount that display in my A1200, since my Gotek has replaced the internal floppy drive.