I always shut down my Ubuntu MATE 16.04 system in exactly the same way: I keep hitting alt+F4 until I get to the very last terminal window and all other applications have been exited, and then I type poweroff
Despite the consistency of my procedure, the time taken by the system to fully shut down (ie the amount of time I'm watching the splash screen) varies a lot, from about 3 seconds to about 25 seconds. Why does this happen, or how can I find out?
I know I can read the logs, but I would love some tips on how to analyse for this
/var/log/syslog
or/var/log/messages
. Probably the 1st one. The 2nd one is not likely to be there on Ubuntu ;) Other tip: you can probably still have the shutdown show you the text on screen