# Uninstall Old Driver
sudo rm /etc/apt/sources.list.d/cuda*
sudo apt remove --autoremove nvidia-cuda-toolkit
sudo apt remove --autoremove nvidia-*
sudo rm -rf /usr/local/cuda*
sudo apt-get purge nvidia*
sudo apt-get update
sudo apt-get autoremove
sudo apt-get autoclean
# Show recomended driver
ubuntu-drivers devices
install CUDA and Driver https://developer.nvidia.com/cuda-downloads
Can choose a flavor!

reboot!
login and download cuDNN https://developer.nvidia.com/rdp/cudnn-download
# Check Driver
nvidia-smi
# check cuda
nvcc --version
# may add to PATH
export PATH=/usr/local/cuda-12.4/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/usr/local/cuda-12.4/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
# check cudnn
ls /usr/local/cuda/include/cudnn.h
ls /usr/local/cuda/lib64/libcudnn*