Lenovo ThinkPad X270

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Reason: Hardware table needs filling in and a function key section added (Discuss in Talk:Lenovo ThinkPad X270#)
Hardware PCI/USB ID Working?
Touchpad Yes
TrackPoint Yes
Keyboard Yes
Video Yes
Ethernet Untested
Card reader Untested
Audio Yes
Wireless Untested
Smartcard reader Untested
Fingerprint reader 138a:0097 Partial
TPM Untested

Firmware

In August of 2018 Lenovo has joined the Linux Vendor Firmware Service (LVFS) project, which enables firmware updates from within the OS. BIOS updates can be queried for and installed through fwupd.

Fingerprint reader

There is a patched libfprint which adds partial support for 138a:0097. libfprint-vfs009x-gitAUR It allows fingerprint authentication, but only if fingers are previously enrolled on the device from Windows.

No audio over HDMI

Use aplay -l to list all audio devices. Use speaker-test to find the correct device-id for HDMI audio, e.g.

$ speaker-test -c 2 -r 48000 -D hw:0,7

Once you have identified the correct audio device id, add the device at the end of your /etc/pulse/default.pa:

/etc/pulse/default.pa
load-module module-alsa-sink device=hw:0,7 channels=2 rate=48000 sink_properties=device.description=HDMI

Finally:

$ killall pulseaudio
$ pulseaudio --check

See also