diff --git a/nalai/etc/nixos/configuration.nix b/nalai/etc/nixos/configuration.nix
index 0dd0afc..f877be3 100644
--- a/nalai/etc/nixos/configuration.nix
+++ b/nalai/etc/nixos/configuration.nix
@@ -11,6 +11,11 @@
     ];
 
   # Bootloader.
+  # Disable PSR according to
+  # https://bbs.archlinux.org/viewtopic.php?pid=2191514#p2191514
+  boot.kernelParams = [
+    "amdgpu.dcdebugmask=0x12"
+  ];
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;