I have a T4, the system is installed ubuntu 16.04 , I found the Ubuntu driver for T4 on the official website,Install according to the steps:
dpkg -i nvidia-diag-driver-local-repo-ubuntu1604-410.72_1.0-1_amd64.deb’ for Ubuntu ii) apt-get update
iii)apt-get install cuda-drivers
When I reboot the machine , Input in the terminal ‘nvidia-smi’ , report an error ‘NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running’.