I've upgraded from 17.04, using Unity, to 17.10, using GNOME. On Unity I was able to assign the shutdown command manually to the shutdown button on my keyboard. With the 17.10 update I moved to GNOME and now I can't change the behaviour of the power button anymore. I tried to simply change the behaviour via dconf, which didn't have any effect. Then I tried to set all button assignments for suspend, hibernation, power off... to "nothing", also via dconf, also without any change. The annoying thing is, if I try to assign a user defined behaviour and press the button the PC goes into suspend immediately. Is there any other config that need to be changed, to get back my old behaviour?
Thanks!