Comment 3 for bug 1748747

Joseph, since I am using the laptop as main working device I am very reluctant to switch from the ubuntu custom kernel to mainline and let the machine die willingly. I got a pointer via AskUbuntu (https://askubuntu.com/questions/961278/how-to-prevent-shutdown-when-one-of-two-batteries-is-empty) that UPower is likely to be the real culprit (https://forums.lenovo.com/t5/Linux-Discussion/How-to-get-dual-battery-to-switch-without-powering-off-in-Linux/td-p/3890605).

I will now tell UPower to warn instead of shutting down, turn on the gnome power management again and check whether the problem stays. If that is the case I will go ahead an run 4.16 :-)