Comment 36 for bug 1930733

> should it fail how can I get the log when my system completely locks up and dies?

My understanding of the bug is that it occurs when the NVIDIA driver tries to bring up the DisplayPort link on certain DisplayPort monitors. You should be able to drive the system in text mode with a failing driver, to capture the log. One way to do that would be to add "systemd.unit=multi-user.target" to the kernel command line. (When the bootloader menu comes up, edit the boot options and add this argument to the line that starts with 'linux'.) If you happen to have another system on the same network you can even try SSHing into the system that reproduces the problem, then start the graphical session manually with `sudo systemctl isolate graphical`, and if the crash doesn't take down the SSH session, you ought to be able to generate the log file while the problem is occurring. (Log files taken while a bug is actively being reproduced tend to be the most useful.) Depending on the exact nature of the crash, you may even be able to SSH into a system which has already crashed, without having to go to the effort of starting it in text mode first.

> In that eventuality I've only been able to recover by booting an older kernel with the older drivers. Will that not invalidate the log content on restart?

It may, or may not. nvidia-bug-report.sh attempts to capture logs from the previous boot, if they have been retained. If you do find that you are unable to capture a log file using a driver version which reproduces the problem, just make sure to note that you captured the log file after rebooting to a known good driver.