VFD on X96 Max

@TheCoolest Could you please tell me the pins you discover up to now from the results of cat /sys/kernel/debug/gpio ?

gpio-424 ( |vdftest ) out lo

That’s pin 14 (424 - 410 base)
And you need 2 or 3 pins, depending on the type of controller.
It also doesn’t say which it is (stb, clk, dat)