From 6478b5d6b918ca05652c89db548cf4ff0a18f4f1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cyryl=20P=C5=82otnicki?= <cyplo@cyplo.dev>
Date: Mon, 5 Dec 2022 15:00:54 +0000
Subject: [PATCH] foureighty - use dri2 as dri3 causes tearing

---
 nixos/boxes/foureighty/default.nix |  1 +
 nixos/gfx-intel-dri2.nix           | 27 +++++++++++++++++++++++++++
 nixos/gfx-intel.nix                |  2 +-
 3 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 nixos/gfx-intel-dri2.nix

diff --git a/nixos/boxes/foureighty/default.nix b/nixos/boxes/foureighty/default.nix
index 7b2a9d68..c7b57ae1 100644
--- a/nixos/boxes/foureighty/default.nix
+++ b/nixos/boxes/foureighty/default.nix
@@ -5,6 +5,7 @@
     inputs.nixos-hardware.nixosModules.lenovo-thinkpad-t480
     ./hardware-configuration.nix
     ./thermal.nix
+    ../../gfx-intel-dri2.nix
     ../../backups.nix
     ../../boot.nix
     ../../distributed-builds.nix
diff --git a/nixos/gfx-intel-dri2.nix b/nixos/gfx-intel-dri2.nix
new file mode 100644
index 00000000..d95d2b85
--- /dev/null
+++ b/nixos/gfx-intel-dri2.nix
@@ -0,0 +1,27 @@
+{ config, pkgs, ... }: {
+  services.xserver = {
+    videoDrivers = [ "intel" ];
+    deviceSection = ''
+      Option "DRI" "2"
+      Option "TearFree" "true"
+    '';
+  };
+
+  hardware.opengl = {
+    enable = true;
+    driSupport = true;
+    extraPackages = with pkgs; [
+      vaapiIntel
+      vaapiVdpau
+      libvdpau-va-gl
+      intel-media-driver
+    ];
+  };
+
+  nixpkgs.config = {
+    packageOverrides = pkgs: {
+      vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
+    };
+  };
+
+}
diff --git a/nixos/gfx-intel.nix b/nixos/gfx-intel.nix
index 78ea00bf..01fab9d7 100644
--- a/nixos/gfx-intel.nix
+++ b/nixos/gfx-intel.nix
@@ -1,5 +1,5 @@
 { config, pkgs, ... }: {
-  services.xserver.videoDrivers = [ "intel" ];
+  services.xserver = { videoDrivers = [ "modesetting" ]; };
 
   hardware.opengl = {
     enable = true;