"unknown error" from CUDA 11.7 (Ubuntu 22.04 64bit)

Thanks for the additional feedback. I’ll try to bring this to the attention of the Ubuntu community then.

Looks like there have been similar issues with previous versions:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-470/+bug/1946312
I have added a comment with a link to this discussion as an attachment to this bug report.

Thanks again for your support!