I am fairly aware of how Tux works and I used to have it resume normally in the long, distant past. I know that it is not 'nothing' going on, but what is going on has...
The system is not reading anything from the disk.
The system is not computing anything.
What the system IS doing is sitting idly doing absolutely nothing...
I'm on Arch and I have a strange issue with systemctl hibernate command. It hibernates and resumes just fine (I have TuxOnIce), but in the last stage of resume, it completely shuts down my laptop...