Ubuntu 15.10 with 4.4 kernel on Dell XPS 15 9530 (new one).
System do not powering itself off after hibernation. Executing pm-hibernate does almost all except notebook will stay under power. The display and disks are off, keyboard is on, USB power is on.
If I manually switch system off/on (holding power button) - it will boot in to hibernated environment (all apps etc. will be there for me).
For reference if I issue shutdown shutdown -P now
the system will terminate and power off all hardware correctly.
So my question is what is wrong with pm-hibernate?
I tryed powermanagment-tools and a command
dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 "org.freedesktop.login1.Manager.Hibernate" boolean:true
with no success.
Please ask for additional info - will post it asap.