Sometimes linux crashes
Yes, I know that is hard to believe, but trust me. It happens.
When it does happen, you usually want to see what messages were spouted on the console before you reboot the machine. Unfortunately, the default linux console configuration is to turn on a screensaver and powersave mode. The result is a blank screen when you actually go over to see what happened.
The following command in your rc.local file will turn off the screensaver and powersave.
/usr/bin/setterm -blank 0 -powersave off
I did this on a fedora system.
In the future, I’ll have someone figure out how to get serial console or some other lights out management system going.