Sleep fix to prevent USB devices from waking Lenovo X1 Carbon 3rd gen up on Ubuntu 18.10

wakeup-fix.service

# Put the below in /etc/systemd/system/wakeup-fix.service
# 
# then do 
#  sudo systemctl daemon-reload 
#  sudo systemctl start wakeup-fix
#
# and check on it with 
#  systemctl status wakeup-fix
#
# then enable it so it starts after boot with 
#  sudo systemctl enable wakeup-fix

[Unit]
Description=wakeup-fix

[Service]
ExecStart=/bin/bash -c "echo XHCI >> /proc/acpi/wakeup; echo EHC1 >> /proc/acpi/wakeup"

[Install]
WantedBy=multi-user.target