Lenovo ThinkPad P15 Gen 1 - ArchWiki

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# Lenovo ThinkPad P15 Gen 1

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Reason: No function keys section, other missing information such as PCI/USB IDs (Discuss in Talk:Lenovo ThinkPad P15 Gen 1)

Hardware | PCI/USB ID | Working?
--- | --- | ---
Touchpad |  | Yes
Trackpoint |  | Yes
Keyboard |  | Yes
GPU (NVIDIA) | `10de:1fb9` | Yes
GPU (Intel) | `8086:9bc4` | Yes
Webcam | `04f2:b6be` | Yes
Ethernet | `8086:06f0` | Yes
Bluetooth | `8087:0026` | Yes
SD-card reader |  | Yes
Audio | `8086:06c8` | Yes
Wireless | `8086:06f0` | Yes
Fingerprint reader | `06cb:00bd` | Yes

## Discrete GPU

This model uses PRIME for combining the integrated and the dedicated GPU. As the external graphic ports are wired to the discrete GPU, drivers for the discrete GPU need to be present in order to use them. However, no special X.org configuration should be necessary, as xrandr should detect the ports automatically. If not, follow the instructions in PRIME#Reverse PRIME.

Note: Disabling the built-in screen can lead to severely degraded graphics performance on external screens (around 2 FPS). This is probably caused by the NVIDIA GPU shutting down, though not further investigated. A workaround that produces the desired result is to set the screen brightness to 0%, or if increased power usage is not a concern, disabling hybrid graphics in the BIOS.

### Disabling discrete GPU via acpi

The built in GPU can be disable and re-enabled on the fly via acpi call. This can significantly reduce power consumption and increase battery live up to a factor of 5.

See Hybrid graphics#Using acpi_call, the specific ACPI call for this device is `\_SB.PCI0.PEG0.PEGP._OFF`.

## Fan control

The default operation of fans is noisy, as they are basically at medium power all the time. The thinkfanAUR program can be used to create a quieter operation, while retaining reasonable temperatures.

Here is an example `/etc/thinkfan.conf` configuration:

    /etc/thinkfan.conf

    sensors:
      # NVIDIA GPU
      - nvml: 01:00.0

      # acpitz
      # crit = 128°C
      - hwmon: /sys/class/hwmon
        name: acpitz
        indices: [1]
        correction: [0]

      # pch_cometlake
      - hwmon: /sys/devices/virtual/thermal/thermal_zone7
        name: pch_cometlake
        indices: [1]
        correction: [0]

      # nvme
      # high = 85°C
      - hwmon: /sys/devices/pci0000:00/0000:00:1b.0/0000:02:00.0/hwmon
        name: nvme
        indices: [2, 3]
        correction: [0, 0]

      # nvme
      # high = 85°C
      - hwmon: /sys/devices/pci0000:00/0000:00:1d.0/0000:55:00.0/hwmon
        name: nvme
        indices: [2, 3]
        correction: [0, 0]

      # coretemp
      # high = 100°C, crit = 100°C.
      - hwmon: /sys/devices/platform/coretemp.0/hwmon
        name: coretemp
        indices: [1, 2, 3, 4, 5, 6, 7, 8, 9]
        correction: [0, 0, 0, 0, 0, 0, 0, 0, 0]

      # thinkpad
      - hwmon: /sys/devices/platform/thinkpad_hwmon/hwmon
        name: thinkpad
        indices: [1, 2, 3, 4, 5, 6]
        correction: [0, 0, 0, 0, 0, 0]

      # thinkpad
      - hwmon: /sys/devices/platform/thinkpad_hwmon/hwmon
        name: thinkpad
        indices: [7]
        correction: [0]

      # thinkpad
      - hwmon: /sys/devices/platform/thinkpad_hwmon/hwmon
        name: thinkpad
        optional: true
        indices: [8]
        correction: [0]

      # iwlwifi_1
      - hwmon: /sys/class/hwmon
        name: iwlwifi_1
        optional: true
        indices: [1]
        correction: [0]

    fans:
      - tpacpi: /proc/acpi/ibm/fan

    levels:
      - [0, 0, 60]
      - [2, 60, 65]
      - [3, 65, 70]
      - [5, 70, 75]
      - [6, 75, 80]
      - [7, 80, 85]
      - ["level disengaged", 85, 255]

## Enabling Turbo boost

By default, the CPU power governor does not allow CPU frequencies to reach turbo boost speeds. This can be fixed via, for instance, cpupower-guiAUR.

This can be changed by modifying the file `/etc/cpupower_gui.conf`:

    /etc/cpupower_gui.conf

    [Profile]
    #This setting was: profile = Balanced
    profile = Performance

Then start/enable `cpupower-gui.service`.

## Firmware

This Device has fwupd support.

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- Lenovo

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