Lenovo ThinkPad X13 Gen 4 (AMD) - ArchWiki

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Hardware | PCI/USB ID | Working?
--- | --- | ---
Touchpad |  | Yes
J-Mouse |  | Yes
Video |  | Yes
Webcam | `04f2:b7c0` | Yes
Bluetooth | `10ab:9309` | Yes
Audio | `1022:15e3` | Yes
Wireless | `17cb:1103` | Yes
Fingerprint reader |  | Untested
WWAN |  | Untested
TPM |  | Untested

## Accessibility

The BIOS offers two modes of operation, GUI and Simple Text.

The GUI can be navigated to some degree via the keyboard. `Left` and `Right` arrow keys to move the selection and `Space` to activate.

For full keyboard support switching to simple text would likely be better.

That can be accomplished by:

- Selecting and activating Config on the left side under Setup
- `Right` arrowing until the drop down to the right of Setup UI is selected
- active the drop down and select Simple Text
- `F10` (save and exit)

Note: Blind users may want to request the help of a sighted person to change BIOS settings

## Hardware

### Video

#### Brightness control

As of kernel 5.9 use the native brightness controller, use the `acpi_backlight=native` kernel parameter.

### Wireless

The wireless card is sometimes significantly slower than usual after waking up from standby. This might be related to a known issue on the Lenovo forum that Lenovo is currently investigating as of December 2023. Toggling the card with rfkill (or `Fn+F8`) seems to solve the problem when it occurs.

## Firmware

fwupd does support this device.

## Function keys

Key | Visible?1 | Marked?2 | Effect
--- | --- | --- | ---
`Fn` | Yes | No | `XF86WakeUp`
`Fn+Esc` | No | Yes | Enables Fn lock
`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`3
`Fn+F9` | Yes | Yes | `XF86Messenger`
`Fn+F10` | Yes | Yes | `XF86Go`
`Fn+F11` | Yes | Yes | `Cancel`
`Fn+F12` | Yes | Yes | `XF86Favorites`
`Fn+Space` | No | Yes | Enables/disables keyboard backlight
`Fn+4` | Yes | No | `XF86Sleep`3
`Fn+B` | Yes | No | `Ctrl_L + Break`
`Fn+P` | Yes | No | `Pause`
`Fn+K` | Yes | No | `Scroll Lock`
`Fn+Left` | Yes | No | `Home`
`Fn+Right` | Yes | No | `End`
`Fn+S` | Yes | No | `Alt_L + Sys_Req`
`Fn+End` | Yes | Yes | `Ins`

1. The key is visible via `xev` and similar tools
2. The physical key has a symbol on it, which describes its function
3. systemd-logind handles this by default

## See also

- Specifications: https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_x13_Gen_4_AMD/ThinkPad_x13_Gen_4_AMD_Spec.PDF
- Official service manual: https://download.lenovo.com/pccbbs/mobiles_pdf/x13_gen4_x13yoga_gen4_hmm_en.pdf
- https://ubuntu.com/certified/202309-32037

Category:

- Lenovo