From b038d103fe7c0e8b489b380633c32ed451414a49 Mon Sep 17 00:00:00 2001
From: Ivan Malison <IvanMalison@gmail.com>
Date: Tue, 8 Aug 2023 19:21:52 +0000
Subject: [PATCH] [NixOS] Raspberry pi hardware acceleration working again

---
 nixos/raspberry-pi.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/nixos/raspberry-pi.nix b/nixos/raspberry-pi.nix
index 99f30f55..5f98284a 100644
--- a/nixos/raspberry-pi.nix
+++ b/nixos/raspberry-pi.nix
@@ -4,8 +4,11 @@
   imports = [
     inputs.nixos-hardware.nixosModules.raspberry-pi-4
   ];
+  # These are needed to allow hardware acceleration again
   # https://github.com/NixOS/nixos-hardware/issues/631
-  # hardware.raspberry-pi."4".fkms-3d.enable = true;
+  boot.kernelParams = [ "kunit.enable=0" ];
+  hardware.deviceTree.filter = "bcm2711-rpi-4*.dtb";
+  hardware.raspberry-pi."4".fkms-3d.enable = true;
   # hardware.raspberry-pi."4".audio.enable = true;
 
   boot = {
@@ -24,7 +27,6 @@
   };
 
   boot.extraModulePackages = [ ];
-  boot.kernelParams = [ ];
 
   hardware.enableRedistributableFirmware = true;