Samsung Series 9 (NP900X3C-A05UK) Ubuntu/Linux: Wake up when I open the lid

So one of the last things that wasn’t perfectly working was coming out of suspend when I opened the lid. First thing you need to so is find the name of the LID switch:

ls /proc/acpi/button/lid/
LID0

Mine seems to be LID0 or LID1. You can then check it’s current state by doing:

cat /proc/acpi/button/lid/LID0/state
state:      open

Now all you need to do is add this to the wake up list

sudo -s
echo LID0 > /proc/acpi/wakeup

That’s it,