From f51e6789f31a2241333887e414b467cc117342e1 Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@proton.me>
Date: Wed, 14 Jan 2026 11:22:21 -0500
Subject: [PATCH] mreow: try and fix graphical corruption issue

---
 system/system-mreow.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/system/system-mreow.nix b/system/system-mreow.nix
index ecfc6ad..aadfc75 100644
--- a/system/system-mreow.nix
+++ b/system/system-mreow.nix
@@ -14,6 +14,12 @@
     inputs.nixos-hardware.nixosModules.framework-amd-ai-300-series
   ];
 
+  # Disable PSR, PSR-SU, and Panel Replay to fix display hangs and corruption.
+  # Panel Replay requires PSR/PSR-SU to also be disabled to avoid issues.
+  # This overrides nixos-hardware's 0x10 with 0x410 (last value wins in kernel cmdline).
+  # https://github.com/NixOS/nixos-hardware/pull/1692
+  boot.kernelParams = lib.mkAfter [ "amdgpu.dcdebugmask=0x410" ];
+
   hardware.framework.laptop13.audioEnhancement.rawDeviceName =
     lib.mkDefault "alsa_output.pci-0000_c1_00.6.analog-stereo";