Removed GNOME from Samhain. Turned LightDM on for Samhain.

As it turns out, if you don't have pkgs.gawk in the path for the thermal script, you don't have awk.
If you don't have awk, it can't actually do any of the power mode switching and locks your card at a lower power mode.
I have a brain, I swear! I just, left it on the counter.

configuration/hosts/samhain/configuration.nix

@@ -1,11 +1,11 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
 {
   imports = [
     ./hardware-configuration.nix
     ../../profiles/common
     ../../profiles/desktop
-    ../../profiles/gnome
+    #../../profiles/gnome
     ../../profiles/xfce
     ../../profiles/gaming
     ../../profiles/development
@@ -23,6 +23,10 @@
   networking.hostName = "samhain";
   networking.hostId = "617050fc";
 
+  services.xserver.deviceSection = lib.mkDefault ''
+    Option "TearFree" "true"
+  '';
+
   networking.useDHCP = false;
   networking.interfaces.enp34s0.useDHCP = true;
   networking.firewall.allowPing = true;

configuration/hosts/samhain/services/thermal/thermal.nix

@@ -10,7 +10,7 @@
     services = {
       kaede-thermals = {
         wantedBy = [ "multi-user.target" ];
-        path = [ pkgs.bash pkgs.coreutils-full ];
+        path = [ pkgs.bash pkgs.coreutils-full pkgs.gawk ];
         serviceConfig = {
           RemainAfterExit = "no";
           Type = "simple";

configuration/profiles/xfce/default.nix

@@ -1,6 +1,6 @@
 { config, lib, pkgs, ... }: {
   services.xserver.enable = true;
-  #services.xserver.displayManager.lightdm.enable = true;
+  services.xserver.displayManager.lightdm.enable = true;
   services.xserver.desktopManager.xfce.enable = true;
   services.gvfs = {
     enable = true;