From 8293ebafb4bfa8e3960dc35d4c7ef9634fb87f43 Mon Sep 17 00:00:00 2001
From: teutat3s <teutates@mailbox.org>
Date: Sun, 20 Jun 2021 15:38:01 +0200
Subject: [PATCH] Improve power management

---
 hosts/dumpyourvms/dumpyourvms.nix | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/hosts/dumpyourvms/dumpyourvms.nix b/hosts/dumpyourvms/dumpyourvms.nix
index f20f34b4..63b2308e 100644
--- a/hosts/dumpyourvms/dumpyourvms.nix
+++ b/hosts/dumpyourvms/dumpyourvms.nix
@@ -13,7 +13,7 @@ in
     pub-solar.x-os.keyfile = "/etc/nixos/hosts/dumpyourvms/secrets/keyfile.bin";
 
     # fix backlight for keyboard and brightness, adjust function key binding
-    boot.kernelParams = [ "acpi_backlight=video" "hid_apple.fnmode=2" ];
+    boot.kernelParams = [ "acpi_backlight=video" "hid_apple.fnmode=2" "intel_pstate=active" ];
     boot.loader.efi.canTouchEfiVariables = true;
 
     hardware = {
@@ -33,6 +33,17 @@ in
     # Thunderbolt tools
     services.hardware.bolt.enable = true;
 
+    # TLP for power management
+    services.tlp = {
+      enable = true;
+      settings = {
+        CPU_SCALING_GOVERNOR_ON_AC = "performance";
+        CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+        CPU_BOOST_ON_AC = 1;
+        CPU_BOOST_ON_BAT = 0;
+      };
+    };
+
     services.udev.extraRules =
       # Disable XHC1 wakeup signal to avoid resume getting triggered some time
       # after suspend. Reboot required for this to take effect.