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# Lenovo ThinkPad X390 Yoga

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Reason: Needs IDs in hardware table and function keys table needs visiblity/marked filled in (Discuss in Talk:Lenovo ThinkPad X390 Yoga)

Hardware | PCI/USB ID | Working?
--- | --- | ---
Touchpad |  | Yes
TouchScreen |  | Yes
TrackPoint |  | Yes
Keyboard |  | Yes
Video |  | Yes
Webcam |  | Yes
Ethernet |  | Untested
Bluetooth |  | Yes
microSD-Card slot |  | Yes
Audio |  | Yes
Wireless |  | Yes
Mobile broadband |  | Yes
Fingerprint Reader |  | Yes

## 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 (and possibly other firmware such as the Thunderbolt controller) can be queried for and installed through fwupd.

## Touchscreen

One option for fixing the touchscreen after resume is reloading the wacom kernel module:

    /usr/lib/systemd/system-sleep/10-wacom.sh

    #!/bin/bash

    case $1/$2 in
      pre/*)
        # echo "Going to $2..."
        /usr/bin/rmmod wacom
        ;;
      post/*)
        # echo "Waking up from $2..."
        /usr/bin/modprobe wacom
        ;;
    esac

This reloads the wacom kernel module during standby and fixes the issue for me. Other possible options can be found in the related ThinkPad articles, like disabling Thunderbolt or using rtcwake for 1 second. Both options did not work reliably for me.

The touchscreen appears to perform much better using libinput. Created the following file:

    /etc/X11/xorg.conf.d/40-libinput.conf

    Section "InputClass"
      Identifier "touchscreen config"
      MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
      MatchDevicePath "/dev/input/event*"
      MatchIsTouchscreen "on"
      Driver "libinput"
      Option "Tapping" "true"
      Option "TappingDrag" "true"
    EndSection

This uses libinput and fixes scrolling with the finger in the desktop environment.

## Fingerprint reader

See fprint.

## Function keys

Key | Visible?1 | Marked?2 | Effect
--- | --- | --- | ---
`Fn` |  |  | XF86WakeUp
`Fn+F1` |  |  | XF86AudioMute
`Fn+F2` |  |  | XF86AudioLowerVolume
`Fn+F3` |  |  | XF86AudioRaiseVolume
`Fn+F4` |  |  | XF86AudioMicMute
`Fn+F5` |  |  | XF86MonBrightnessDown
`Fn+F6` |  |  | XF86MonBrightnessUp
`Fn+F7` |  |  | XF86Display
`Fn+F8` |  |  | XF86WLAN
`Fn+F9` |  |  | XF86Tools
`Fn+F10` |  |  | XF86Bluetooth
`Fn+F11` |  |  | ??
`Fn+F12` |  |  | XF86Favorites

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

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