Debian on Lenovo V14 IIL

The laptop Lenovo v14 IIL needs a couple of tricks to work with debian Buster:

  • the wifi adapter doesn't works with the installer kernel, even with firmware, so I used a USB netwok adapter to install the system
  • to make the video and wifi adapters work you have to install from backports either the kernel and the firmware-linux and firmware-atheros packages.
  • To make the touchpad work you need to pass a couple of paremeters to the kernel, as stated in askubuntu. I choose to insert them in the GRUB_CMDLINE_LINUX line, as this is used for both normal and Recovery Mode boot:
GRUB_CMDLINE_LINUX="i8042.nopnp=1 pci=nocrs"

According to the documentation the first parameter inhibits the use of PnP for touchpad discovery

i8042.nopnp  [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX controllers

While the second parameter is more hackish, and would require opening a bug:

nocrs    [X86] Ignore PCI host bridge windows from ACPI.
         If you need to use this, please report a bug.

Until now I'm able to use only the left button of the touchpad, as a temporary workaround for the right one I am using the combination CTRL + Click