default.nix

{ lib, pkgs, ... }: {
  imports = [
    ../common
    ../common/intel.nix
  ];

  boot.kernelParams = [
    # For Power consumption
    # https://kvark.github.io/linux/framework/2021/10/17/framework-nixos.html
    "mem_sleep_default=deep"
    # Workaround iGPU hangs
    # https://discourse.nixos.org/t/intel-12th-gen-igpu-freezes/21768/4
    "i915.enable_psr=1"
  ];

  boot.blacklistedKernelModules = [ 
    # This enables the brightness and airplane mode keys to work
    # https://community.frame.work/t/12th-gen-not-sending-xf86monbrightnessup-down/20605/11
    "hid-sensor-hub"
    # This fixes controller crashes during sleep
    # https://community.frame.work/t/tracking-fn-key-stops-working-on-popos-after-a-while/21208/32
    "cros_ec_lpcs"
  ];
  
  # Further tweak to ensure the brightness and airplane mode keys work
  # https://community.frame.work/t/responded-12th-gen-not-sending-xf86monbrightnessup-down/20605/67
  systemd.services.bind-keys-driver = {
    description = "Bind brightness and airplane mode keys to their driver";
    wantedBy = [ "default.target" ];
    after = [ "network.target" ];
    serviceConfig = {
      Type = "oneshot";
      User = "root";
    };
    script = ''
      ls -lad /sys/bus/i2c/devices/i2c-*:* /sys/bus/i2c/drivers/i2c_hid_acpi/i2c-*:*
      if [ -e /sys/bus/i2c/devices/i2c-FRMW0001:00 -a ! -e /sys/bus/i2c/drivers/i2c_hid_acpi/i2c-FRMW0001:00 ]; then
        echo fixing
        echo i2c-FRMW0001:00 > /sys/bus/i2c/drivers/i2c_hid_acpi/bind
        ls -lad /sys/bus/i2c/devices/i2c-*:* /sys/bus/i2c/drivers/i2c_hid_acpi/i2c-*:*
        echo done
      else
        echo no fix needed
      fi
    '';
  };

  # Alder Lake CPUs benefit from kernel 5.18 for ThreadDirector
  # https://www.tomshardware.com/news/intel-thread-director-coming-to-linux-5-18
  boot.kernelPackages = lib.mkIf (lib.versionOlder pkgs.linux.version "5.18") (lib.mkDefault pkgs.linuxPackages_latest);

}