Lenovo ThinkPad S440

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Reason: Hardware table needs IDs added and a function keys section should be added (Discuss in Talk:Lenovo ThinkPad S440)
Hardware PCI/USB ID Working?
Touchpad Yes
GPU (Intel) Yes
GPU (ATi) Yes
Webcam Yes
Ethernet Yes
Audio Yes
Wireless Yes

Touchpad

Install xf86-input-synaptics to get multi-touch gestures working.

Keyboard backlight

Currently the thinkpad_acpi module does not support to turn the keyboard backlight on. But you can turn it off with: 

# echo 0 > /sys/devices/platform/thinkpad_acpi/leds/tpacpi::thinklight/brightness

Suspend

Works flawlessly with with pm-utilsAUR or any DE integration. If resuming from suspend works once but not a second time, try disabling Intel's Anti-Theft module in BIOS (see this kernel bug report).