Comment 16 for bug 1757445

I've found that I can make the system stable with the following settings:

     System Settings:
  Privacy>Screen Lock: On
  Power>Dim screen when inactive: Off
  Power>Blank screen: 10m
  Power>Automatic suspend:
   On Battery Power: On
    Delay: 20m
   Plugged In: On
    Delay: 1h
  Power>When the Power Button is pressed: Suspend
  Devices>Displays>Night Light Off
     Gnome Tweaks (installed):
  Power>Suspend when laptop lid is closed: On

     Upgraded BIOS.

 Graphics are:
  Intel® Sandybridge Mobile
  NVidia Optimus

It seems to hang with "Night Light" and "Dim screen when inactive" enabled. So, I have those off. I originally had "Night Light" enabled with sunrise and sunset. That caused my system to try to hang around sunrise and sunset. And it generally would hang when unsuspending after one of those options activated.

Anyhow, I will be trying this out sometime soon to prevent that sort of trouble:

http://www.akitaonrails.com/2017/03/14/enabling-optimus-nvidia-gpu-on-the-dell-xps-15-with-linux-even-on-battery

I expect that will allow me to use the "Night Light" and "Dim screen when inactive" options.