dell-xps-15-9570.nix

###############################
## Dell XPS 15 9570 (0x087C) ##
###############################

{ config, lib, pkgs, ... }:

{
  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
  boot.kernelModules = [ "kvm-intel" "i915" ];
  boot.kernelParams = [
    "mem_sleep_default=deep"
    "acpi_rev_override=1" "acpi_osi=Linux"
    "pcie_aspm=force"
    "drm.vblankoffdelay=1"
    "nmi_watchdog=0"
  ];

  boot.blacklistedKernelModules = [ "nouveau" "nv" "rivafb" "nvidiafb" "rivatv" ];
  services.xserver.videoDrivers = [ "nvidia" ];

  boot.extraModprobeConfig = ''
    # options i915 disable_power_well=0 fastboot=1 enable_fbc=1 enable_guc=3 enable_psr=1
    options cfg80211 ieee80211_regdom=US
    options nouveau modeset=0 nouveau.runpm=0
    optinos scsi_mod use_blk_mq=1
  '';

  nixpkgs.config.allowUnfree = true;

  hardware.cpu.intel.updateMicrocode = true;
  hardware.nvidia = {
    optimus_prime = {
      enable = true;
      intelBusId = "PCI:0:2:0";
      nvidiaBusId = "PCI:1:0:0";
    };
    modesetting.enable = true;
  };

  hardware.firmware = [ pkgs.wireless-regdb ];

  services.hardware.bolt.enable = true;
  services.fstrim.enable = true;
  services.tlp.extraConfig = ''
    CPU_SCALING_GOVERNOR_ON_AC=powersave
    CPU_SCALING_GOVERNOR_ON_BAT=powersave
    USB_AUTOSUSPEND=1
    WOL_DISABLE=Y
    CPU_BOOST_ON_AC=0
    CPU_BOOST_ON_BAT=0
    CPU_HWP_ON_AC=balance_performance
    CPU_HWP_ON_BAT=balance_power
    SOUND_POWER_SAVE_ON_AC=1
  '';

  environment.systemPackages = [ pkgs.libsmbios ];

  hardware.opengl.extraPackages = [
    pkgs.vaapiIntel
    pkgs.vaapiVdpau
    pkgs.libvdpau-va-gl
    pkgs.intel-media-driver
  ];

  services.xserver.dpi = 196;
  environment.variables."_JAVA_OPTIONS" = "-Dsun.java2d.uiScale=2";

  console.earlySetup = true;
  console.font = "${pkgs.terminus_font}/share/consolefonts/ter-u28n.psf.gz";

  networking.networkmanager.wifi.powersave = true;

}