added accelerated video playback

nixosModules/base.nix

@@ -9,6 +9,7 @@
       ./gnome.nix
       ./systemd.nix
       ./fonts.nix
+      ./intel-gpu.nix
     ];
 
   # Bootloader.
@@ -151,12 +152,6 @@
 
   ];
 
- # not working
- # Accelerated Video Playback
- # nixpkgs.config.packageOverrides = pkgs: {
- #   intel-vaapi-driver = pkgs.intel-vaapi-driver.override { enableHybridCodec = true; };
- # };
-
 # NOT WORKING, FIX LATER
 #  hardware.graphics = {
 #    enable = true;

nixosModules/intel-gpu.nix

@@ -0,0 +1,14 @@
+{ config, pkgs, lib, ... }:
+
+# for Accelerated Video Playback
+# https://wiki.nixos.org/wiki/Accelerated_Video_Playback
+{
+  hardware.graphics = {
+    enable = true;
+    extraPackages = with pkgs; [
+      intel-media-driver # For Broadwell (2014) or newer processors. LIBVA_DRIVER_NAME=iHD
+      #intel-vaapi-driver # For older processors. LIBVA_DRIVER_NAME=i965
+    ];
+  };
+  environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; }; # Optionally, set the environment variable
+}