Failed to initialize NVML: Driver/library version mismatch

[Saentist]

installed nvidia-driver-470
nouveau is blacklist-ed /simple transcoding feature is needed/

nvidia-smi
Failed to initialize NVML: Driver/library version mismatch

ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:15.0/0000:03:00.0 ==
modalias : pci:v000010DEd00000FC1sv00001569sd00000FC1bc03sc00i00
vendor   : NVIDIA Corporation
model    : GK107 [GeForce GT 640]
driver   : nvidia-driver-390 - distro non-free
driver   : nvidia-driver-470 - third-party non-free recommended
driver   : nvidia-driver-450-server - distro non-free
driver   : nvidia-driver-418-server - distro non-free
driver   : nvidia-driver-470-server - distro non-free
driver   : xserver-xorg-video-nouveau - distro free builtin