The official packages do not seem up-to-date (https://packages.ubuntu.com/search?keywords=nvidia-cuda-toolkit) but using the latest cuda seems to matter when using newer hardware.
Nvidia is making packages available, but there is no guarantee that they will work well or will integrate with Ubuntu's management of nvidia drivers.
Is there an effort to create an ubuntu package in a PPA so we do not have to install manually and work out conflicts individually? (the package would handle that)
When using the ISO for Ubuntu 20.04, checking the SHA256SUM (from here - https://releases.ubuntu.com/20.04/SHA256SUMS), and creating a bootable USB, the following message appears briefly at the end of the media check during boot.
Check finished: errors found in 1 files! You might encounter errors.
I tried creating the bootable USB with 3 different thumbdrives (2 different brands), and using either the Startup Disk Creator or Disks and the error does not go away.
Could the ISO be corrupted ? (and the checksum be calculated on the corrupted iso).
edit: a comment requested further clarification on that latest part - The check during boot appears to be checking individual files (in the ISO) while the checksum verfied after downloading (and prior to creating the bootable USB) is for the ISO. The creation of the ISO and the calculation of its digest, and the check mechanisms for individual files in the ISO can be distinct processes, which would allow the creation of a corrupted ISO if being built from at least one corrupted subpart (file).