1  { config, pkgs, ... }:
 2  {
 3    boot = {
 4      blacklistedKernelModules = [
 5        # Kernel GPU Savings Options (NOTE i915 chipset only)
 6        "sierra_net"
 7        "cdc_mbim"
 8        "cdc_ncm"
 9      ];
10      extraModprobeConfig = ''
11        options snd_hda_intel power_save=1
12      '';
13      initrd = {
14        availableKernelModules = [ "ehci_pci" "ahci" "xhci_pci" "usb_storage" "sd_mod" "sdhci_pci" "aesni-intel" "cryptd" ];
15      };
16      kernelModules = [ "kvm_intel" ];
17      kernelParams = [
18        # Kernel GPU Savings Options (NOTE i915 chipset only)
19        "i915.enable_rc6=1"
20        "i915.enable_fbc=1"
21        "i915.lvds_use_ssc=0"
22        "drm.debug=0"
23        "drm.vblankoffdelay=1"
24        "kvm_intel.nested=1"
25        "intel_iommu=on"
26      ];
27      loader.efi.canTouchEfiVariables = true;
28    };
29    hardware = {
30      trackpoint.enable = false;
31      cpu.intel.updateMicrocode = true;
32      opengl.extraPackages = with pkgs; [ vaapiIntel libvdpau-va-gl vaapiVdpau intel-ocl intel-media-driver ];
33    };
34    services = {
35      acpid = {
36        enable = true;
37      };
38      xserver = {
39        synaptics.enable = false;
40        config =
41          ''
42            Section "InputClass"
43              Identifier     "Enable libinput for TrackPoint"
44              MatchIsPointer "on"
45              Driver         "libinput"
46              Option         "ScrollMethod" "button"
47              Option         "ScrollButton" "8"
48            EndSection
49          '';
50        inputClassSections = [
51          ''
52            Identifier "evdev touchpad off"
53            MatchIsTouchpad "on"
54            MatchDevicePath "/dev/input/event*"
55            Driver "evdev"
56            Option "Ignore" "true"
57          ''
58        ];
59      };
60    };
61  }