Lenovo ThinkPad X13s (lenovo-21bx)

== Introduction ==
Model numbers start with either 21bx or 21by, this page should apply to both. Note that some models have a touchscreen, whilst others do not. Models also differ in 8GB, 16GB and 32GB RAM, and in 256GB, 512GB or 1TB SDD size.
== Contributors ==
* craftyguy
== Users owning this device ==
== Installation ==
Make the following changes in the EFI setup application:
EFI Config Option	Value
Secure Boot 	Disabled
Linux Boot 	Enabled
Use pmbootstrap to build your own installation image, the regular procedure is:
$ pmbootstrap init
$ pmbootstrap install --fde
For this device, the most straight forward way to install pmOS to the local nvme disk, at least until ondev2 is ready, is to build a USB drive with a pmOS install, boot it, then use pmbootstrap to build/flash an image to the nvme disk. The process then looks something like this:
$ pmbootstrap install --disk /dev/<usb disk> --add pmbootstrap
# Boot the usb disk on the laptop
$ pmbootstrap init && pmbootstrap install --fde --disk /dev/nvme0n1
== WWAN / Mobile Data ==
With , mobile data should be working after you enable the FCC unlock script for the modem. The most straight forward way to do this is by just enabling all scripts by:
$ sudo ln -sft /etc/ModemManager/fcc-unlock.d /usr/share/ModemManager/fcc-unlock.available.d/*
== GPS ==
Some initial support for GPS seems to be working, though I haven't been able to get geoclue to use it as a source yet:
$ mmcli -m 0 --location-enable-gps-raw --location-enable-gps-nmea
successfully setup location gathering
$ watch mmcli -m 0 --location-get
It might be working fine on UIs that configure/start geoclue by default, that's TBD.
== Camera ==
Camera should work out of the box in postmarketOS. The Spectra DSP is not supported so the RAW images have to be processed on the CPU using soft IPA, which gives the image a yellowish tint. The libcamera developers know about this.
* Libcamera with softIPA
$ cam -l
[3:32:07.798064350] [21815] INFO Camera camera_manager.cpp:284 libcamera v0.2.0+102-99a77ff7
[3:32:07.805651580] [21818] WARN CameraSensor camera_sensor.cpp:501 'ov5675 27-0010': Rotation control not available, default to 0 degrees
[3:32:07.813241831] [21818] ERROR IPAProxy ipa_proxy.cpp:149 Configuration file 'ov5675.yaml' not found for IPA module 'simple'
Available cameras:
1: Internal front camera (/base/soc@0/cci@ac4c000/i2c-bus@1/camera@10)
$ qcam
The Black and White camera used for Facial Authentication (Windows Hello) is not yet supported.
* Support the IR Camera OV9734
== Audio ==
Audio works out-of-the-box with the combination pipewire, pipewire-pulse and wireplumber.
There may be some audio artifacts, especially whilst pavucontrol is running.
== Known issues ==
A list of known issues can be found in the pmaports repository
== Magic Sysrq ==
The Lenovo keyboard shortcuts document mentions using Fn+S to type SysRq, however it is much more reliable to hold Alt, press and release PrtSc, then continue with the magic sysrq commands. You must continue holding Alt when entering magic sysrq commands.
== See also ==
* Keyboard shortcuts / bindings
* Kernel tree with WIP mainline patches (Johan Hovold)
* Lenovo Thinkpad X13s Kernel Status (Johan Hovold)
* Hardware maintenance manual
* Installing EFI firmware updates on the Thinkpad x13s, without Windows
* Firmware download, from Lenovo.com
* Staged linux-firmware updates, from Linaro
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