Hi Patrice, just to verify: 418.74 (in buster) and 418.88 (formerly in unstable/testing) were working fine?
I have some packages for testing available: https://people.debian.org/~anbe/418.87.01/amd64/ That's the latest tesla driver release packaged as a regular 418.xx release (i.e. without any "*-tesla-*" package renaming that may still have some bugs in corner cases) https://people.debian.org/~anbe/418.113/amd64/ That's the latest 418.xx upstream release. Please give them a try. Andreas