Extract AMD-GPU from Nvidia, to make it easier to choose either

lenovo/yoga/7/14ARH7/amdgpu/default.nix

@@ -0,0 +1,23 @@
+# Including this file will enable the AMD-GPU driver
+
+{ lib, pkgs, ... }:
+
+let
+  inherit (lib) mkDefault;
+
+in {
+  imports = [
+    ../shared.nix
+  ];
+
+  # AMD RX680
+  services.xserver.videoDrivers = mkDefault [ "amdgpu" ];
+
+  hardware = {
+    amdgpu.loadInInitrd = true;
+    opengl.extraPackages = with pkgs; [
+      vaapiVdpau
+      libvdpau-va-gl
+    ];
+  };
+}

lenovo/yoga/7/14ARH7/default.nix

@@ -1,82 +1,15 @@
-{ config, lib, pkgs, ... }:
+# When using from a Flake, you can access these via imports of the attr key, e.g:
+#
+# imports = [
+#   nixos-hardware.nixosModules.lenovo-yoga-7-14ARH7.amdgpu
+# ];
+#
+## or:
+# imports = [
+#   nixos-hardware.nixosModules.lenovo-yoga-7-14ARH7.nvidia
+# ];
 
-let
+{
-  inherit (lib) mkDefault mkMerge;
+  amdgpu = import ./amdgpu;
-
+  nvidia = import ./nvidia;
-in {
-  imports = [
-    ../../../../common/cpu/amd
-    # Better power-savings from AMD PState:
-    ../../../../common/cpu/amd/pstate.nix
-    ../../../../common/gpu/amd
-    ## "prime.nix" loads this, aleady:
-    # ../../../../common/gpu/nvidia
-    ../../../../common/gpu/nvidia/prime.nix
-    ../../../../common/pc/laptop
-    ../../../../common/pc/laptop/acpi_call.nix
-    ../../../../common/pc/ssd
-  ];
-
-  config = mkMerge [
-    {
-      # Configure basic system settings:
-      boot = {
-        kernelModules = [ "kvm-amd" ];
-        kernelParams = [
-          "mem_sleep_default=deep"
-          "pcie_aspm.policy=powersupersave"
-
-          ## Supposed to help fix for suspend issues: SSD not correctly working, and Keyboard not responding:
-          ## Not needed for the 6.1+ kernels?
-          # "iommu=pt"
-
-          ## Fixes for s2idle:
-          ##    https://www.phoronix.com/news/More-s2idle-Rembrandt-Linux
-          # "acpi.prefer_microsoft_guid=1"
-          ## Appears to have been renamed?
-          "acpi.prefer_microsoft_dsm_guid=1"
-        ];
-
-        blacklistedKernelModules = [ "nouveau" ];
-      };
-    }
-
-    {
-      ## Graphics settings
-
-      ## AMD RX680
-      # services.xserver.videoDrivers = mkDefault [ "amdgpu" ];
-
-      # NVIDIA GeForce RTX 3050 Mobile (Ampere)
-      services.xserver.videoDrivers = mkDefault [ "nvidia" ];
-
-      hardware = {
-        ## Enable the Nvidia card, as well as Prime and Offload:
-        amdgpu.loadInInitrd = true;
-        opengl.extraPackages = with pkgs; [
-          vaapiVdpau
-          libvdpau-va-gl
-        ];
-
-        nvidia = {
-          modesetting.enable = true;
-          nvidiaSettings = true;
-
-          prime = {
-            offload = {
-              enable = true;
-              enableOffloadCmd = true;
-            };
-            amdgpuBusId = "PCI:4:0:0";
-            nvidiaBusId = "PCI:1:0:0";
-          };
-
-          powerManagement = {
-            enable = true;
-            # finegrained = true
-          };
-        };
-      };
-    }
-  ];
 }

lenovo/yoga/7/14ARH7/nvidia/default.nix

@@ -0,0 +1,47 @@
+# Including this file will enable the NVidia driver, and PRIME offload
+
+{ lib, pkgs, ... }:
+
+let
+  inherit (lib) mkDefault;
+
+in {
+  imports = [
+    ../shared.nix
+    ## "prime.nix" loads this, aleady:
+    # ../../../../common/gpu/nvidia
+    ../../../../../common/gpu/nvidia/prime.nix
+  ];
+
+  # NVIDIA GeForce RTX 3050 Mobile (Ampere)
+  services.xserver.videoDrivers = mkDefault [ "nvidia" ];
+
+  hardware = {
+    ## Enable the Nvidia card, as well as Prime and Offload:
+    amdgpu.loadInInitrd = true;
+    opengl.extraPackages = with pkgs; [
+      vaapiVdpau
+      libvdpau-va-gl
+    ];
+
+    nvidia = {
+      modesetting.enable = true;
+      nvidiaSettings = true;
+
+      prime = {
+        offload = {
+          enable = true;
+          enableOffloadCmd = true;
+        };
+        amdgpuBusId = "PCI:4:0:0";
+        nvidiaBusId = "PCI:1:0:0";
+      };
+
+      powerManagement = {
+        enable = true;
+        # Doesn't seem to be reliable, yet?
+        # finegrained = true
+      };
+    };
+  };
+}

lenovo/yoga/7/14ARH7/shared.nix

@@ -0,0 +1,32 @@
+{ ... }:
+
+{
+  imports = [
+    ../../../../common/cpu/amd
+    # Better power-savings from AMD PState:
+    ../../../../common/cpu/amd/pstate.nix
+    ../../../../common/gpu/amd
+    ../../../../common/pc/laptop
+    ../../../../common/pc/laptop/acpi_call.nix
+    ../../../../common/pc/ssd
+  ];
+
+  # Configure basic system settings:
+  boot = {
+    kernelModules = [ "kvm-amd" ];
+    kernelParams = [
+      "mem_sleep_default=deep"
+      "pcie_aspm.policy=powersupersave"
+
+      ## Supposed to help fix for suspend issues: SSD not correctly working, and Keyboard not responding:
+      ## Not needed for the 6.1+ kernels?
+      # "iommu=pt"
+
+      ## Fixes for s2idle:
+      ##    https://www.phoronix.com/news/More-s2idle-Rembrandt-Linux
+      "acpi.prefer_microsoft_dsm_guid=1"
+    ];
+
+    blacklistedKernelModules = [ "nouveau" ];
+  };
+}