No GPU signal on bare metal screen nvidia error

Hello,

on the screen attached to the bare metal server on which I run TrueNas I get normal boot, then after the OS has loaded I get the error:

nvidia_uvm: module uses symbols nvUvmI nterfaceDisableAccessntr from proprietary module nvidia, inheriting taint.

and the screen goes blank! or black if you prefer.

Is there a way I can see the Os again on my screen?

everithing else works fine