I use an XPS 9365, running Vanilla GNOME Shell on Ubuntu 17.10.
At the beginning, hibernation command "sudo pm-hibernate" didn't work at all. Then, doing my research, I understood the only way to put your computer in hibernation was to put Ubuntu in Airplane mode (shutting off Wifi and Bluetooth). So now 'sudo pm-hibernate' command works (flashing the session state on the SSD, than powering off the laptop). But when I power on my laptop again, it reloads a new fresh new session with bluetooth activated.
I read also about bcrm driver or something.
Would there be a way to make hibernation a success ? Thanks a lot for your reading ;)
Yoann