error
The following information may help to resolve the situation:
The following packages have unmet dependencies:
nvidia-kernel-dkms : Depends: firmware-nvidia-gsp (= 535.216.01) but it is not installable or
firmware-nvidia-gsp-535.216.01 but it is not installable
E: Unable to correct problems, you have held broken packages.
Adding ‘non-free-firmware’ to source fixed my issues.
https://wiki.debian.org/SourcesList
