Lenovo ThinkPad T495s - ArchWiki

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Reason: Needs IDs in hardware table and a function keys section (Discuss in Talk:Lenovo ThinkPad T495s)

Hardware | PCI/USB ID | Working?
--- | --- | ---
GPU |  | Yes
Ethernet | `10ec:8168` | Untested
Wifi | `8086:2526` | Yes
Audio |  | Yes
TrackPoint |  | Yes
Touchpad |  | Yes
Webcam | `13d3:56ba` | Yes
Fingerprint reader | `06cb:00bd` | Yes
Mobile broadband |  | Untested
Bluetooth | `8087:0025` | Yes
Smartcard Reader | `058f:9540` | Yes

This article covers the installation and configuration of Arch Linux on a Lenovo T495s laptop.

For a general overview of laptop-related articles and recommendations, see Laptop.

## Fingerprint reader

The fingerprint reader works with some recent firmware and software updates.

1. Use fwupd to install the latest firmware for "Synaptics Prometheus Fingerprint Reader". The update might have to be done manually as the released firmware is in testing; or you could enable the testing remote in fwupd to allow automated upgrade. The relevant firmwares are Prometheus Fingerprint Reader and Prometheus Fingerprint Reader Configuration.
2. fprintd ≥ 1.90.1 and libfprint ≥ 1.90.1 are required.

fprint has more details on how to setup the fingerprint, for PAM-based authentication for example.

## Backlight

Backlight works correctly by manipulating the values, between 0-255, inside `/sys/class/backlight/amdgpu_bl0/brightness` or using a backlight managing utility.

`systemd-backlight@backlight:acpi_video0.service` requires masking as it seems to be triggered and fails on boot.

## Firmware

Although the fwupd utility works to update some of the components, Lenovo does not support BIOS updates for the T495s yet. A BIOS update Bootable CD iso that is OS agnostic may be downloaded from Lenovo support[1].

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- Lenovo

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