From 2384fc9224dc0c103a92d7f8ce24f1611e510ce0 Mon Sep 17 00:00:00 2001
From: Jordan Holt <jordan@vimium.com>
Date: Sat, 22 Jun 2024 17:50:00 +0100
Subject: [PATCH] Use nvidia 470 legacy driver on hypnos

---
 flake.nix                               |  1 +
 hosts/hypnos/default.nix                |  9 +++++++++
 hosts/hypnos/hardware-configuration.nix | 10 +++++++++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index a8a9290..c880b1d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -77,6 +77,7 @@
                 nixpkgs.pkgs = import nixpkgs {
                   inherit overlays system;
                   config.allowUnfree = true;
+                  config.nvidia.acceptLicense = true;
                 };
                 networking.hostName = name;
               })
diff --git a/hosts/hypnos/default.nix b/hosts/hypnos/default.nix
index d67ca5e..fe70bcb 100644
--- a/hosts/hypnos/default.nix
+++ b/hosts/hypnos/default.nix
@@ -14,6 +14,15 @@
 
   networking.hostId = "cf791898";
 
+  # nvidia 470 driver doesn't work with Wayland
+  services.xserver = {
+    displayManager.gdm.wayland = lib.mkForce false;
+    videoDrivers = [ "nvidia" ];
+  };
+
+  # Workaround for label rendering bug in GTK4 with nvidia 470 driver
+  environment.sessionVariables.GSK_RENDERER = "gl";
+
   modules = {
     desktop = {
       browsers = {
diff --git a/hosts/hypnos/hardware-configuration.nix b/hosts/hypnos/hardware-configuration.nix
index fbc0f12..88dd874 100644
--- a/hosts/hypnos/hardware-configuration.nix
+++ b/hosts/hypnos/hardware-configuration.nix
@@ -8,7 +8,10 @@
   boot = {
     initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
     kernelModules = [ "applesmc" "kvm-intel" "wl" ];
-    extraModulePackages = [ config.boot.kernelPackages.broadcom_sta ];
+    extraModulePackages = [
+      config.boot.kernelPackages.broadcom_sta
+      config.boot.kernelPackages.nvidiaPackages.legacy_470
+    ];
   };
 
   networking.useDHCP = lib.mkDefault true;
@@ -17,6 +20,11 @@
 
   hardware = {
     cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+    nvidia = {
+      package = config.boot.kernelPackages.nvidiaPackages.legacy_470;
+      modesetting.enable = true;
+      powerManagement.enable = true;
+    };
     opengl = {
       enable = true;
       extraPackages = with pkgs; [