2 files changed, 5 insertions, 3 deletions
diff --git a/modules/amd.nix b/modules/amd.nix
index 6ec3e2b..e16e3e9 100644
--- a/modules/amd.nix
+++ b/modules/amd.nix
@@ -3,6 +3,6 @@ let
   kver = config.boot.kernelPackages.kernel.version;
 in
 {
-  boot.kernelParams = [ "amd_pstate=active" ];
+  boot.kernelParams = [ "amd_pstate=active" "amd_iommu=on" ];
   hardware.cpu.amd.updateMicrocode = config.hardware.enableRedistributableFirmware;
 }
diff --git a/modules/amdgpu.nix b/modules/amdgpu.nix
index a8367cc..6c1f109 100644
--- a/modules/amdgpu.nix
+++ b/modules/amdgpu.nix
@@ -18,10 +18,12 @@
     driversi686Linux.amdvlk
   ];
 
-  services.xserver.videoDrivers = [ "amdgpu" ];
-  boot.initrd.kernelModules = [ "amdgpu" ];
+  services.xserver.videoDrivers = [ "modesetting" ];
 
   systemd.tmpfiles.rules = [
     "L+    /opt/rocm/hip   -    -    -     -    ${pkgs.rocmPackages.clr}"
   ];
+
+  boot.kernelPackages = pkgs.linuxPackages_zen;
+  boot.kernelParams = [ "pcie_acs_override=downstream,multifunction"];
 }