From ce2e4707b782657e077a0ef072cbd67756cae673 Mon Sep 17 00:00:00 2001
From: yuu <yuuyin@protonmail.com>
Date: Sat, 9 Jul 2022 20:53:35 -0300
Subject: [PATCH] hardware/nvidia: add @ to constraint on busIDType

On some configurations, the only known syntax that works
requires the `@` character, such as `intelBusId = "0@0:2:0";`  and
`nvidiaBusId = "1@1:0:0";` [1].

[1]. https://discourse.nixos.org/t/struggling-with-nvidia-prime/13794/4
---
 nixos/modules/hardware/video/nvidia.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/hardware/video/nvidia.nix b/nixos/modules/hardware/video/nvidia.nix
index b4717719661a..5fcd165186ff 100644
--- a/nixos/modules/hardware/video/nvidia.nix
+++ b/nixos/modules/hardware/video/nvidia.nix
@@ -24,7 +24,7 @@ let
   primeEnabled = syncCfg.enable || offloadCfg.enable;
   nvidiaPersistencedEnabled =  cfg.nvidiaPersistenced;
   nvidiaSettings = cfg.nvidiaSettings;
-  busIDType = types.strMatching "([[:print:]]+\:[0-9]{1,3}\:[0-9]{1,2}\:[0-9])?";
+  busIDType = types.strMatching "([[:print:]]+[\:\@][0-9]{1,3}\:[0-9]{1,2}\:[0-9])?";
 in
 
 {