Completely disable systemd power-saving modules:

sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

Disable systemd lid switch (for laptops):

sed -i -e 's/HandleLidSwitch=suspend/HandleLidSwitch=ignore/' /etc/systemd/logind.conf

The above became necessary as systemd-logind was detecting that the lid was closed and calling suspend.target. The calls …

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Objective:

Enable the "Start up automatically after a power failure" feature found within OS X without OS X installed.

Solution:

1. Find the LPC controller via lspci.
2. Reference the LPC controller datasheet to find the register to update.
3. Update the register with …

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lsusb shows us that—sure enough—Apple's IR receiver is being loaded on boot:

# lsusb Bus 005 Device 002: ID 05ac:8242 Apple, Inc. Built-in IR Receiver

lsmod reveals hid_appleir is the module being loading for our remote. Let's blacklist it:

# echo 'blacklist hid_appleir' > /etc/modprobe.d/hid_appleir.conf …

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