Unfortunately, when you need to power off the system in this way, information being written to the logs is lost.
Whenever there is a particular sequence that causes a crash, I usually cause a terminal to sleep for 5 secs, and then have it do the sequence - all in a single line separated by a semicolon. Once the sleep is started, I switch to the logging console. On my system, that is selected with CTRL-ALT-F10. The graphics console is at CTRL-ALT-F7. Once the crash happens, I either write down the crucial info, or I take a photo of the screen.
If you have a second system, you might also look at the network console method of capturing dump info.
Unfortunately, when you need to power off the system in this way, information being written to the logs is lost.
Whenever there is a particular sequence that causes a crash, I usually cause a terminal to sleep for 5 secs, and then have it do the sequence - all in a single line separated by a semicolon. Once the sleep is started, I switch to the logging console. On my system, that is selected with CTRL-ALT-F10. The graphics console is at CTRL-ALT-F7. Once the crash happens, I either write down the crucial info, or I take a photo of the screen.
If you have a second system, you might also look at the network console method of capturing dump info.