I have the same problem after install driver 440 :
nvidia-smi
Wed Apr 22 17:35:57 2020
±----------------------------------------------------------------------------+
| NVIDIA-SMI 440.82 Driver Version: 440.82 CUDA Version: 10.2 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce RTX 2060 Off | 00000000:01:00.0 Off | N/A |
| 50% 41C P0 24W / 170W | 0MiB / 5933MiB | 0% Default |
±------------------------------±---------------------±---------------------+
±----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| No running processes found |
±----------------------------------------------------------------------------+
I can use putty, but my server screen is black, I can no longer use it.
sudo apt purge nvidia*
sudo apt autoremove --purge
sudo apt update && sudo apt full-upgrade
It’s OK I have my screen but after :
sudo ubuntu-drivers autoinstall
…Same problem