From e319f6fc20d100fbd190962240e7d5216a760d5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cyryl=20P=C5=82otnicki?= <cyplo@cyplo.net>
Date: Sat, 6 Jul 2019 07:54:07 +0100
Subject: [PATCH] Enable more power saving on 480

---
 nixos/boxes/foureighty.nix | 5 +++++
 nixos/common.nix           | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/nixos/boxes/foureighty.nix b/nixos/boxes/foureighty.nix
index 0e06bd26..b0b2f948 100644
--- a/nixos/boxes/foureighty.nix
+++ b/nixos/boxes/foureighty.nix
@@ -5,6 +5,11 @@
  networking.hostName = "foureighty";
  boot = {
     initrd.kernelModules = [ "i915" ];
+    kernelParams = [
+      "i915.enable_fbc=1"
+      "i915.enable_psr=2"
+      "i915.enable_rc6=7"
+    ];
     initrd.luks.devices = [
       {
         name = "root";
diff --git a/nixos/common.nix b/nixos/common.nix
index 112832b5..d8a17d16 100644
--- a/nixos/common.nix
+++ b/nixos/common.nix
@@ -85,10 +85,11 @@ in
 
   sound.enable = true;
   networking.networkmanager.enable = true;
+  hardware.enableRedistributableFirmware = true;
+  hardware.cpu.intel.updateMicrocode = true;
   hardware.pulseaudio.enable = true;
   hardware.u2f.enable = true;
   hardware.brightnessctl.enable = true;
-  hardware.cpu.intel.updateMicrocode = true;
   hardware.sane.enable = true;
 
   nix.gc.automatic = true;