nix: added upower

Placed paower management into a single file

hardware/purism_librem_15.nix

@@ -42,9 +42,4 @@
     ];
 
   nix.maxJobs = lib.mkDefault 4;
-
-  powerManagement = {
-    enable = true;
-    cpuFreqGovernor = lib.mkDefault "powersave";
-  };
 }

hosts/dionach.nix

@@ -5,7 +5,7 @@
 {
 
   imports = [
-    ../hardware/purism_librem_15.nix   # Include the results of the hardware scan.
+    ../hardware/purism_librem_15.nix   # Include results of the hardware scan.
     ../profiles/android.nix            # Provide an Android dev environment
     ../profiles/cron-craige.nix        # Provide Craige's cron jobs
     ../profiles/daedalus.nix           # The open source cryptocurrency wallet for ADA
@@ -18,6 +18,7 @@
     ../profiles/nix-mio-ops.nix        # mio-ops Nix tooling
     ../profiles/nixpkgs-dev.nix        # Nix pkgs dev tools
     ../profiles/openssh.nix            # Enable and configure openssh
+    ../profiles/powerManagement.nix    # Power management for laptops
     ../profiles/qemu.nix               # Qemu virtualisation
     ../profiles/weechat.nix            # Weechat environment
     ../profiles/xmonad.nix             # Xmonad desktop environment

profiles/desktop_common.nix

@@ -9,6 +9,7 @@
       ../profiles/host_common.nix
       ../profiles/daedalus.nix
       ../profiles/openssh.nix
+      ../profiles/powerManagement.nix
       ../secrets/user-craige.nix
       ../secrets/user-fiona.nix
       ../secrets/user-hamish.nix
@@ -61,8 +62,6 @@
     };
   };
 
-  powerManagement.enable = true;
-
   sound.enable = true;   # Enable sound.
 
   # Configure common hardware settings

profiles/powerManagement.nix

@@ -0,0 +1,18 @@
+# Power management configuration for the laptops
+
+{ config, pkgs, lib, ... }:
+
+{
+
+  powerManagement = {
+    enable = true;
+    cpuFreqGovernor = lib.mkDefault "performance";
+    powertop.enable = true;   # Enable powertop auto tuning on startup
+  };
+
+  services = {
+    upower = {
+      enable = true;   # Enable application power managemetn support
+    };
+  };
+}