Using systemctl hybrid-sleep for hibernate in Xfce

[Pétùr]

For some obscure reason, hibernate though Xfce button does not work in my laptop (without doubts because of my old nvidia card).

But systemctl commands work (s2disk also). So, I would like to replace the default action for hibernate in Xfce by "systemctl hybrid-sleep".

I could just add a keyboard shortcut but I want the default action for hibernate when reaching a low pourcent of battery life to be systemctl (or s2disk).

Cheers,
Pétùr

P-S: The same question (unanswered) on StackExchange: https://unix.stackexchange.com/questions/453327/xfce4-hibernation-not-waking-up-properly-in-debian-stretch