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# Lenovo ThinkPad P14s (AMD) Gen 4

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Hardware | PCI/USB ID | Working?
--- | --- | ---
GPU | `1002:15bf` | Yes
Wi-Fi | `17cb:1103` | Yes
Bluetooth | `10ab:9309` | Yes
Ethernet | `10ec:8168` | Yes
Audio | `1022:15e3` | Yes
TrackPoint |  | Yes
Touchpad |  | Yes
Touchscreen |  | Yes
Webcam | `5986:118c` | Yes
TPM |  | Yes
Fingerprint reader | `27c6:6594` | Yes
Smartcard reader | `2ce3:9563` | Yes

This article covers the installation and configuration of Arch Linux on a Lenovo ThinkPad P14s (AMD) Gen 4 laptop. With recent enough kernel the device works almost out of the box.

For a general overview of laptop-related articles and recommendations, see Laptop.

## Firmware

Warning There is an issue that can leave your system in broken state when changing sleep states in BIOS. See Lenovo ThinkPad T14 (AMD) Gen 3#Firmware.

This model is fully compatible with fwupd.

`fwupdmgr get-devices` detects the System Firmware, UEFI BIOS, webcam, fingerprint sensor, CPU/GPU, TPM and the NVMe controller.

## CPU

Since kernel 6.5, the AMD P-State EPP driver with "Active" profile is applied by default, no changes should be needed.

In case you are getting GPU resets (black screen), check Lenovo ThinkPad T14s (AMD) Gen 3#CPU.

Tip You can verify your CPU frequency scaling driver with cpupower or `cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver`.

## Touchpad

To disable sleep wake-up from touchpad see Lenovo ThinkPad T14s (AMD) Gen 3#Disable wakeup from sleep on touchpad activity.

## Touchscreen

Note Not all variations of this model have touchscreen.

The variation of this model with product code/name `21K50009CK` is equipped with InfoVision display with touchscreen capability and it works out of the box.

The respective touchscreen input can be found as I2C device `ELAN901C:00 04F3:2EDE`.

See Touchscreen for other information.

## Speakers

Speakers work out of the box. However, they will not have the same sound quality as on Windows due to the missing Dolby Atmos Convolver. The quality can be improved by using EasyEffects with a convolver effect (and possibly others) - see here for an example preset for this laptop.

## Wi-Fi

The factual accuracy of this article or section is disputed.

Reason: Should clarify after which version of linux-firmware the fix is shipped or if the fix requires a newer kernel too. (Discuss in Talk:Lenovo ThinkPad P14s (AMD) Gen 4)

Starting with kernel v6.10, remaining bugs with the ath11k firmware have been fixed.

However, this patch was found to cause issues with suspend, and was reverted in 6.10.10 as well as 6.11.

See Lenovo ThinkPad T14s (AMD) Gen 3#Network / Wi-Fi for a fix that unloads the `ath11k_pci` module before sleep and loads it again after resume.

Previously, specific ath11k firmware versions caused suspend during lid close to immediately wake from sleep.

## Smartcard reader

Tested using FIDO2 applet on J3180. Follow the instructions from smartcards.

## Fingerprint reader

Works as expected. Follow fprintd

## Power management

### S3 sleep / s2idle

S3 (`deep`) sleep is not supported by this CPU anymore. However, s2idle works out of the box and causes no problems with sleep / hibernation.

The sleep power consumption with s2idle (or S0/`S0ix`/`Modern Standby`) can vary as it depends on the running OS and how well it can put peripherals into sleep mode.

### Hibernate

Works fine. If you face Wi-Fi issues after hibernation see #Wi-Fi.

### Battery thresholds

Battery charge thresholds can be correctly set with TLP or within KDE / GNOME power management.

### AMD P-State EPP

If you are using power-profiles-daemon, please note that the current stable release of it do not fully support AMD P-State EPP. You can switch to TLP version 1.6 or newer that supports AMP P-State features, or fix this using an udev rule + script to apply different AMD P-State EPP states depending on whether the laptop is running on battery or charger.

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

    SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="/usr/local/bin/on_battery.sh"
    SUBSYSTEM=="power_supply", ATTR{online}=="1", RUN+="/usr/local/bin/on_ac.sh"

    /usr/local/bin/on_battery.sh

    #!/usr/bin/bash

    # Change Dirty Writeback Centisecs according to TLP / Powertop
    echo '5000' > '/proc/sys/vm/dirty_writeback_centisecs';

    # Change AMD Paste EPP energy preference
    # Available profiles: performance, balance_performance, balance_power, power
    echo 'balance_power' | tee /sys/devices/system/cpu/cpu*/cpufreq/energy_performance_preference;

    # If required, change cpu scaling governor
    # Possible options are: conservative ondemand userspace powersave performance schedutil
    #cpupower frequency-set -g powersave;

    # Platform Profiles Daemon will do this automatically, based on your settings in KDE / GNOME
    # You can how ever, set this manually as well
    # Possible profile options are: performance, powersave, low-power
    #echo 'powersave' > '/sys/firmware/acpi/platform_profile';

    # Radeon AMDGPU DPM switching does not seem to be supported.
    # Possible options should be: battery, balanced, performance, auto
    #echo 'battery' > '/sys/class/drm/card0/device/power_dpm_state';

    # Should always be auto (TLP default = auto)
    # Possible options are: auto, high, low
    #echo 'auto' > '/sys/class/drm/card0/device/power_dpm_force_performance_level';

    # Runtime PM for PCI Device to auto
    find /sys/bus/pci/devices/*/power -name control -exec sh -c 'echo "auto" > "$1"' _ {} \;
    for i in $(find /sys/devices/pci0000\:00/0* -maxdepth 3 -name control); do
        echo auto > $i;
    done

    /usr/local/bin/on_ac.sh

    #!/usr/bin/bash

    # Change Dirty Writeback Centisecs according to TLP / Powertop
    echo '500' > '/proc/sys/vm/dirty_writeback_centisecs';

    # Change AMD Paste EPP energy preference
    # Available profiles: performance, balance_performance, balance_power, power
    echo 'balance_performance' | tee /sys/devices/system/cpu/cpu*/cpufreq/energy_performance_preference;

    # If required, change cpu scaling governor
    # Possible options are: conservative ondemand userspace powersave performance schedutil
    #cpupower frequency-set -g performance;

    # Platform Profiles Daemon will do this automatically, based on your settings in KDE / GNOME
    # You can how ever, set this manually as well
    # Possible profile options are: performance, powersave, low-power
    #echo 'performance' > '/sys/firmware/acpi/platform_profile';

    # Radeon AMDGPU DPM switching does not seem to be supported.
    # Possible options should be: battery, balanced, performance, auto
    #echo 'performance' > '/sys/class/drm/card0/device/power_dpm_state';

    # Should always be auto (TLP default = auto)
    # Possible options are: auto, high, low
    #echo 'auto' > '/sys/class/drm/card0/device/power_dpm_force_performance_level';

    # Runtime PM for PCI Device to on
    find /sys/bus/pci/devices/*/power -name control -exec sh -c 'echo "on" > "$1"' _ {} \;
    for i in $(find /sys/devices/pci0000\:00/0* -maxdepth 3 -name control); do
        echo on > $i;
    done

Additionally make `/usr/local/bin/on_battery.sh` and `/usr/local/bin/on_ac.sh` executable.

### Power Profiles Daemon

The package power-profiles-daemon is the standard power management service for KDE#Power management and GNOME#Power modes. It conflicts with TLP and the reasons for that are described here: https://gitlab.freedesktop.org/upower/power-profiles-daemon#why-not

1. Install power-profiles-daemon
2. Start/enable the `power-profiles-daemon` service.

## Microphone

### Reported as unplugged

If the internal mic is recognized by ALSA, but the recorded input is silent, please see: https://bbs.archlinux.org/viewtopic.php?pid=2162297#p2162297

### LED

If the Mic LED seems to stay always on see: Lenovo ThinkPad T14 (AMD) Gen 3#Mute Mic LED always on.

## Function keys

Key | Visible?1 | Marked?2 | Effect | Note
--- | --- | --- | --- | ---
`Fn` | Yes | - | `XF86WakeUp` | Can be swapped with left Ctrl in BIOS
`Fn+4` | Yes | No | `XF86Sleep` |
`Fn+Esc` | No | Yes | Toggles Fn lock | Has status led
`Fn+F1` | Yes | Yes | `XF86AudioMute` | Has status led
`Fn+F2` | Yes | Yes | `XF86AudioLowerVolume` |
`Fn+F3` | Yes | Yes | `XF86AudioRaiseVolume` |
`Fn+F4` | Yes | Yes | `XF86AudioMicMute` | Has status led
`Fn+F5` | Yes | Yes | `XF86MonBrightnessDown` |
`Fn+F6` | Yes | Yes | `XF86MonBrightnessUp` |
`Fn+F7` | Yes | Yes | `XF86Display` |
`Fn+F8` | Yes | Yes | `XF86WLAN` | Marked with airplane mode
`Fn+F9` | Yes | Yes | `XF86Messenger` | Marked with message box
`Fn+F10` | Yes | Yes | `XF86Go` | Marked with phone answer call
`Fn+F11` | Yes | Yes | `Cancel` | Marked with phone end call
`Fn+F12` | Yes | Yes | `XF86Favorites` |
`Fn+Tab` | Yes | No | `XF86FullScreen` |
`Fn+Left` | Yes | No | `Home` |
`Fn+Right` | Yes | No | `End` |
`Fn+P` | Yes | No | `Pause` |
`Fn+S` | Yes | No | `Sys_Req` |
`Fn+K` | Yes | No | `Scroll_Lock` |
`Fn+B` | Yes | No | `Break` |
`Fn+PrtSc` | Yes | Yes | `XF86Launch2` |
`Fn+Space` | No | Yes | Change keyboard backlight level |

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

## See also

- Lenovo ThinkPad T14s (AMD) Gen 3
- Lenovo ThinkPad T14 (AMD) Gen 3

Category:

- Lenovo

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