Hi @ngmartins-ff,
Welcome to balena forum. I have limited knowledge on the GPU setup above, but we had a similar thread sometime back where the blacklisting/blocking of nouveau driver was done successfully and a dockerfile is shared for the same. Ref: blacklist drivers in host OS - #25 by jgordon
Also, I have pinged some of our folks who have been involved with the nvidia-x86 on balena to see if they have seen something similar. Let us know if the above blocking steps make a difference.
Regards,
Nitish