nixos-hardware/common/pc/laptop/cpu-throttling-bug.nix

{ config, pkgs, ... }:
{
  # Temporary fix for cpu throttling issues visible in the kernel log
  # (journalctl -k) by setting the same temperature limits used by
  # Window$
  # See https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues
  systemd.services.cpu-throttling = {
    enable = true;
    description = "CPU Throttling Fix";
    documentation = [
      "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
    ];
    path = [ pkgs.msr-tools ];
    script = "wrmsr -a 0x1a2 0x3000000";
    serviceConfig = {
      Type = "oneshot";
    };
    wantedBy = [
      "timers.target"
    ];
  };

  systemd.timers.cpu-throttling = {
    enable = true;
    description = "CPU Throttling Fix";
    documentation = [
      "https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X1_Carbon_(Gen_6)#Power_management.2FThrottling_issues"
    ];
    timerConfig = {
      OnActiveSec = 60;
      OnUnitActiveSec = 60;
      Unit = "cpu-throttling.service";
    };
    wantedBy = [
      "timers.target"
    ];
  };
}