Update Telescope command and modify NixOS configurations

- Update Telescope command in `telescope.nix` to use `grep_string`
- Add `cpupower` and `lm_sensors` to `systemPackages` in `citadel/default.nix'
- Enable power management for NVIDIA in `citadel/default.nix` and clean up udev rules formatting

home/common/core/nixvim/plugins/telescope.nix

@@ -22,7 +22,7 @@
       # grep string under cursor
       mode = ["n"];
       key = "<Leader>fs";
-      action = "<cmd>Telescope string_grep<CR>";
+      action = "<cmd>Telescope grep_string<CR>";
       options = {noremap = true;};
     }
     {

hosts/citadel/default.nix

@@ -108,6 +108,11 @@ in {
     XCURSOR_SIZE = "64";
   };
 
+  environment.systemPackages = [
+    pkgs.linuxKernel.packages.linux_zen.cpupower
+    pkgs.lm_sensors
+  ];
+
   # services.tlp = {
   #   enable = true;
   #   settings = {
@@ -135,7 +140,7 @@ in {
     enable = true;
   };
 
-  services.xserver.videoDrivers = [ "nvidia" ];
+  services.xserver.videoDrivers = ["nvidia"];
 
   hardware.nvidia = {
     prime = {
@@ -148,8 +153,8 @@ in {
     };
     nvidiaPersistenced = true;
     modesetting.enable = true;
-    powerManagement.enable = false;
-    powerManagement.finegrained = false;
+    powerManagement.enable = true;
+    powerManagement.finegrained = true;
     open = false;
     nvidiaSettings = true;
     # FIXME issue with stable nvidia driver and latest linux kernel
@@ -169,7 +174,6 @@ in {
   # https://discourse.nixos.org/t/how-to-use-nvidia-prime-offload-to-run-the-x-server-on-the-integrated-board/9091/15
   #  for udev rules to disable dGPU when not in use
   boot.extraModprobeConfig = ''
-    options nvidia NVreg_DynamicPowerManagement=0x02
     options nvidia NVreg_EnableGpuFirmware=0
   '';
   services.udev.extraRules = ''

hosts/common/core/default.nix

@@ -49,7 +49,6 @@ in
     pkgs.just
     pkgs.git
     pkgs.vim
-    pkgs.linuxKernel.packages.linux_zen.cpupower
   ];
 
   system.stateVersion = "24.05";