backwards: Continued attempt to fix audio output

hosts/backwards/configuration.nix

@@ -22,6 +22,13 @@
     alsa.enable = true;
     alsa.support32Bit = true;
     pulse.enable = true;
+
+    extraConfig.pipewire."90-hdmi-fix" = {
+      "context.properties" = {
+        "default.clock.rate" = 48000;
+        "default.clock.allowed-rates" = [ 48000 ];
+      };
+    };
   };
 
   hardware = {

hosts/backwards/modules/boot/default.nix

@@ -41,6 +41,7 @@ in
 
       extraModprobeConfig = ''
         options snd-intel-dspcfg dsp_driver=1
+        options snd_hda_intel power_save=0 power_save_controller=N
       '';
     };
   };