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

Installation

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 script in /lib/systemd/systemd-sleep to restart related service

#!/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.

Troubleshooting the "Match-on-Chip" lock and Python 3.14 pathing

If the sensor fails with a "Type 15" error or Python pathing issues (common on newer Arch installs or resold devices), follow these steps:

BIOS Reset (Windows Lock)

If the laptop previously had Windows installed, the hardware may be paired to a Windows enclave.

Reboot into BIOS.
Go to Security > Fingerprint.
Select Reset Fingerprint Data.

Manual Cryptographic Pairing

On systems with Python 3.14+, the AUR packages may fail to find site-packages. Stop background services and run the pairing script manually:

Stop interfering services:sudo systemctl stop python3-validity open-fprintd
Kill remaining processes: sudo killall -9 python3
Clear backoff locks: sudo rm -f /var/run/python-validity.last_start
Run the pairing script with explicit pathing:
sudo PYTHONPATH=/usr/lib/python3.14/site-packages python3 /usr/share/python-validity/playground/prototype.py

Follow the prompts to swipe your finger and generate new keys.

Manual Enrollment Service

To enroll without service interference, start the bridge and driver in the foreground:

In one terminal: sudo systemctl start open-fprintd
In the same or a second terminal: sudo PYTHONPATH=/usr/lib/python3.14/site-packages python3 /usr/lib/python-validity/dbus-service --debug
In a final terminal: fprintd-enroll $USER

Once enrollment is complete, enable the services:

# sudo systemctl enable --now python3-validity open-fprintd

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