Lenovo ThinkPad P1 (Gen 4)
| Hardware | PCI/USB ID | Working? |
|---|---|---|
| Touchpad | Yes | |
| Keyboard | Yes | |
| GPU (NVIDIA) | Yes | |
| GPU (Intel) | Yes | |
| Webcam | Yes | |
| Bluetooth | Yes | |
| SD-card reader | Yes | |
| Audio | Yes | |
| Wireless | Yes | |
| Fingerprint reader | Yes | |
| TPM | Untested |
Firmware
The device supports fwupd.
Brightness control
OLED display
OLED screens have no backlight, brightness cannot be controlled by changing backlight power in the traditional way. Instead, it can be controlled using PWM by enabling following option:
/etc/modprobe.d/i915.conf
options i915 enable_dpcd_backlight=1
Alternatively, you can add i915.enable_dpcd_backlight=1 as a kernel parameter.
LCD display
Hybrid graphics
Hybrid graphics (also known as NVIDIA Optimus) allow the system to use the integrated Intel graphics and the NVIDIA GPU interchangeably without rebooting.
Brightness control under hybrid graphics should work "out of the box" with no kernel command line options necessary. If you notice brightness controls cease working, check that your BIOS settings are still for Hybrid Graphics and not Discrete Graphics.
Discrete graphics
Discrete graphics means only the NVIDIA GPU is available to the system.
Currently brightness control does not work with Discrete Graphics selected in BIOS.
Audio
Install Sound Open Firmware to get audio working.
Power management
Some models can come with a powerful dGPU (Like a 3070 Max-Q) and this can drain the battery very rapidly consuming ~11Wh when using the nvidia-open driver and even if the NVIDIA dGPU is not being used in any process.
To solve this you can use EnvyControl to disable the NVIDIA dGPU temporally using the command:
# envycontrol -s integrated
This will blacklist all the NVIDIA modules leaving the GPU powered off and unusable.
To re-enable the NVIDIA dGPU you can use:
# envycontrol -s hybrid
- This was not tested using the proprietary nvidia or nvidia-dkms packages.
- For more power saving related tweaks, see Power management.