Lenovo Thinkpad X9

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Reason: Missing an "Accessibility" sections. (Discuss in Talk:Lenovo Thinkpad X9)

Hardware	PCI/USB ID	Working?
ForcePad		Yes
TouchScreen		Yes
Stylus		Yes
GPU	`8086:64a0`	Yes
Webcam		No
IR camera		No
Audio	`8086:a828`	Yes
Wi-Fi	`8086:a840`	Yes
NPU	`8086:643e`	Yes
Bluetooth	`8086:a876`	Yes
Fingerprint reader	`06cb:019d`	Yes
Ambient light sensor		No
Thunderbolt 4	`8086:a831`	Yes
TPM		Yes

Note The 14-inch model and the 15-inch model are two different models designed by two different teams. They do not use the same firmware release package. The following description may not apply to certain models.

In general, Linux kernel 6.14 is required for most peripherals to function properly.

ForcePad

The ForcePad functions needs kernel driver for Intel THC (Touch Host Controller) which is upstreamed to Linux kernel 6.14. The following config is already enabled for linux:

config

CONFIG_INTEL_THC_HID=m
CONFIG_INTEL_QUICKSPI=m
CONFIG_INTEL_QUICKI2C=m

For 14" Sensel touchpad, you can adjust haptic feedback using hid-tools:

# hid-feature set /dev/hidraw1 -f b0000 <value 1-100>

and click force with:

# hid-feature set /dev/hidraw1 -f d0000 <value 1-3>

The device reverts to default settings after reboot. We can make it permanent through udev rules:

etc/udev/rules.d/99-sensel.rules

SUBSYSTEM=="hidraw", ACTION=="add", ENV{ID_VENDOR_FROM_DATABASE}=="Cirtech (UK) Ltd", RUN+="/usr/bin/hid-feature set /dev/%k -f b0000 50", RUN+="/usr/bin/hid-feature set /dev/%k -f d0000 1"

TouchScreen

Same as #ForcePad.

Stylus

Same as #ForcePad.

Audio

This laptop requires Sound Open Firmware in order to make the sound card working.

Power Management

There are typically battery charging adjustments available for ThinkPad laptops.

See Power management/Suspend and hibernate#Changing suspend method.

Ambient Light Sensor

This model needs a custom Intel ISH (Integrated Sensors Hub) firmware for the ambient light sensors. The custom firmware is not upstreamed yet and can be extracted from the Windows driver package through innoextract. The ISH firmware is located at:

/lib/firmware/intel/ish/ish_lnlm.bin.zst

Webcam

Certain models feature MIPI cameras that currently lack upstream kernel support.

MIPI cameras rely on multiple drivers to function correctly, including those for the CSI controller (IPU7), the I/O expansion board, and the camera sensor itself. The IPU7 driver is going to be merged into the staging driver area of kernel 6.17.

In particular, both 14-inch model and 15-inch model use the IMX471 camera sensor. The engineers of Intel have pushed an out-of-tree driver to the intel-ipu6-dkms-git^AUR package.

Conversely, non-MIPI cameras are expected to work out of the box.

This is some work based on the 6.17 kernel:

https://github.com/intel/ipu6-drivers/issues/346#issuecomment-3275372796

IR Camera

Same as Webcam. The driver for the IR camera sensor (HM1092) is not available yet.

Firmware

Thinkpad X9 is one of the model in the Lenovo Linux program. But the fwupd support is not ready since the Linux certificate is not finished.

Before the fwupd support is ready. The firmware can be updated through the bootable ISO provided by Lenovo.

Function keys

Key	Visible?¹	Marked?²	Effect
`Fn`	Yes	No	`KEY_WAKEUP`
`Fn+Esc`	No³	Yes	Enables Fn lock
`Fn+F1`	Yes³	Yes	`KEY_MUTE`
`Fn+F2`	Yes	Yes	`KEY_VOLUMEDOWN`
`Fn+F3`	Yes	Yes	`KEY_VOLUMEUP`
`Fn+F4`	Yes³	Yes	`KEY_F20`⁴ Mutes microphone
`Fn+F5`	Yes	Yes	`KEY_BRIGHTNESSDOWN`⁵
`Fn+F6`	Yes	Yes	`KEY_BRIGHTNESSUP`⁵
`Fn+F7`	Yes	Yes	`KEY_SWITCHVIDEOMODE`⁴
`Fn+F8`	No	Yes	Toggles ACPI platform profile
`Fn+F9`	Yes³	Yes	SW_CAMERA_LENS_COVER⁴ Toggles integrated camera
`Fn+F10`	Yes	Yes	`KEY_SYSRQ`⁴
`Fn+F11`	Yes	Yes	`KEY_LINK_PHONE`⁴
`Fn+F12`	Yes	Yes	`KEY_BOOKMARKS`⁴
`Fn+End`	Yes	Yes	`KEY_INSERT`
`Fn+B`	Yes	No	`KEY_LEFTCTRL`+`KEY_PAUSE`
`Fn+P`	Yes	No	`KEY_PAUSE`
`Fn+K`	Yes	No	`KEY_SCROLLLOCK`
`Fn+H`	No	No	switch to performance profile
`Fn+M`	No	No	switch to balanced profile
`Fn+L`	No	No	switch to low power profile
`Fn+Up`	Yes	Yes	`KEY_PAGEUP`
`Fn+Down`	Yes	Yes	`KEY_PAGEDOWN`
`Fn+Left`	Yes	No	`KEY_HOME`
`Fn+Right`	Yes	No	`KEY_END`
`Fn+S`	Yes	No	`KEY_LEFTALT`+`KEY_SYSRQ`

The key is visible via evtest and similar tools
The physical key has a symbol on it, which describes its function
An LED indicates the state of this switch
This event is handled by "ThinkPad Extra Buttons"
This event is handled by "Video Bus"

Fn and LeftCtrl can be swapped in the BIOS menu. The keycaps are the same size, so they could theoretically also be swapped to match the BIOS setting.

As of BIOS version N4DET32W (1.15 on the X9-14), the "Fool proof FN Ctrl" feature is enabled by default and Fn+C, Fn+V and some other act as LeftCtrl+C etc…

Fingerprint sensor

Fingerprint sensor is located on the power button, reported as "Synaptics Sensors".

The fingerprint reader works out of the box using fprintd. See Fprint.

Known issues

Random touchpad initialization failure

Model with MIPI camera may experience random touchpad initialization failure:

i2c_hid_acpi i2c-SNSL002E:00: Could not register for SNSL002E:00 interrupt, irq = 219, ret = -19

The only known workaround for this is disabling integrated camera in the BIOS setting.