broken power limiting config

hosts/acer.nix

@@ -109,6 +109,9 @@ rec {
   ];
   boot.kernelModules = [ "acer-wmi-ext" ];
 
+  # Breaks sleep, not enabling for now
+  # lumpiasty.acerUndervolt = true;
+
   boot.initrd.kernelModules = [ "amdgpu" "thunderbolt" ];
 
   # This value determines the NixOS release from which the default

modules/default.nix

@@ -5,6 +5,7 @@
     hardware/intel-cpu.nix
     hardware/amd-cpu.nix
     hardware/no-mitigations.nix
+    hardware/acer-undervolt.nix
 
     system/roles.nix
     system/nixpkgs.nix

modules/hardware/acer-undervolt.nix

@@ -0,0 +1,42 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  options.lumpiasty.acerUndervolt = lib.mkEnableOption "Enable Acer undervolt module";
+
+  config = lib.mkIf config.lumpiasty.acerUndervolt (
+  let 
+    # Use forked version of ryzen_smu
+    # https://github.com/FlyGoat/RyzenAdj/issues/350#issuecomment-2971428510
+    ryzen-smu = config.boot.kernelPackages.ryzen-smu.overrideAttrs (oldAttrs: {
+      src = pkgs.fetchFromGitHub {
+        owner = "amkillam";
+        repo = "ryzen_smu";
+        rev = "172c316f53ac8f066afd7cb9e1da517084273368";
+        sha256 = "sha256-U2UMWY7XgLXOpNgl2OsFBRvZSC4/qLa9rzJxFOpZ830=";
+      };
+    });
+    ryzenadj = pkgs.ryzenadj.overrideAttrs (oldAttrs: {
+      src = pkgs.fetchFromGitHub {
+        owner = "FlyGoat";
+        repo = "RyzenAdj";
+        rev = "7aeb2f4869ee52ac161ee4cb4871e29113487885";
+        sha256 = "sha256-KE2dbGv4V3+ibyxJ/DHNnBOGzjAcZbGrC3cVGNDsTTQ=";
+      };
+    });
+  in {
+    # Undervolting
+    boot.kernelModules = [ "ryzen-smu" ];
+
+    boot.extraModulePackages = [
+      ryzen-smu
+    ];
+
+    environment.systemPackages = [
+      ryzenadj
+      ryzen-smu
+    ];
+
+    programs.corectrl.enable = true;
+    hardware.amdgpu.overdrive.enable = true;
+  });
+}