Lenovo ThinkPad P51

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Hardware	PCI/USB ID	Working?
Touchpad		Yes
Keyboard		Yes
Integrated GPU	`8086:591b`	Yes
Discrete GPU	`10de:1436`	Yes
Webcam	`5986:2118`	Yes
Ethernet	`8086:15e3`	Yes
Bluetooth	`8087:0a2b`	Yes
SD-card reader	`10ec:525a`	Yes
Audio	`8086:a171`	Yes
Wi-Fi	`8086:24fd`	Yes
Fingerprint reader	`138a:0097`	Yes
TPM		Untested

Fingerprint sensor

The fingerprint sensor needs python-validity^AUR to work.
For further configuration, See Fprint#Configuration
To prevent the sensor not working when laptop waking up, create a systemd sleep hook:

/usr/lib/systemd/systemd-sleep/fix-fingerprint.sh

#!/bin/sh
PATH=/sbin:/usr/sbin:/bin:/usr/bin

case "$1" in
    pre)
        #code execution BEFORE sleeping/hibernating/suspending
    ;;
    post)
        #code execution AFTER resuming
        systemctl restart open-fprintd
        systemctl restart python3-validity
        systemctl restart open-fprintd-resume.service
    ;;
esac

A network manager may be corrupted from resume, adding systemctl restart <NetworkManager> to the resume script mentioned before may help.

Function keys

Key	Visible?¹	Marked?²	Effect
`Fn+Esc`	No	Yes	Toggles the Fn lock (Hardware level)
`Fn+F1`	Yes	Yes	`XF86AudioMute`
`Fn+F2`	Yes	Yes	`XF86AudioLowerVolume`
`Fn+F3`	Yes	Yes	`XF86AudioRaiseVolume`
`Fn+F4`	Yes	Yes	`XF86AudioMicMute`
`Fn+F5`	Yes	Yes	`XF86MonBrightnessDown`
`Fn+F6`	Yes	Yes	`XF86MonBrightnessUp`
`Fn+F7`	Yes	Yes	`XF86Display`
`Fn+F8`	Yes	Yes	`XF86WLAN`
`Fn+F9`	Yes	Yes	`XF86NotificationCenter`
`Fn+F10`	Yes	Yes	`XF86PickupPhone`
`Fn+F11`	Yes	Yes	`XF86HangupPhone`
`Fn+F12`	Yes	Yes	`XF86Favorites`
`Fn+4`	Yes	No	`XF86Sleep`
`Fn+S`	Yes	No	`Alt_L` (Legacy `Sys_Req`)
`Fn+B`	Yes	No	`Break` / `Pause`
`Fn+P`	Yes	No	`Pause`
`Fn+K`	Yes	No	`Scroll_Lock`
`Fn+I`	Yes	No	`XF86WakeUp`
`Fn+Space`	No	Yes	Controls keyboard backlight (HW level)
`Fn+Print`	Yes	No	`XF86SelectiveScreenshot`
`Fn+Left Arrow`	Yes	No	`Home`
`Fn+Right Arrow`	Yes	No	`End`

The key is visible to xev and similar tools
The physical key has a symbol on it, which describes its function

Fingerprint sensor

Function keys

See also