From 0b77660443280e0dbfccf1b55785ea6db5ac2d62 Mon Sep 17 00:00:00 2001
From: Christian <thechristiansoltermann@gmail.com>
Date: Fri, 17 Apr 2026 11:49:42 -0500
Subject: Trying to get the GPU to cooperate

---
 hosts/desktop/configuration.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'hosts/desktop/configuration.nix')

diff --git a/hosts/desktop/configuration.nix b/hosts/desktop/configuration.nix
index 96cc210..810fa8b 100644
--- a/hosts/desktop/configuration.nix
+++ b/hosts/desktop/configuration.nix
@@ -39,6 +39,16 @@ in
     package = unstable.ollama;
     acceleration = "rocm";
     rocmOverrideGfx = "10.3.0";
+    environmentVariables = {
+      # This forces ROCm to see ONLY the RX 6800.
+      # On most Ryzen 7000 systems, '0' is the dGPU and '1' is the iGPU.
+      HIP_VISIBLE_DEVICES = "0";
+      ROCR_VISIBLE_DEVICES = "0";
+
+      # Keep these for RDNA 2 stability with 26B models
+      HSA_OVERRIDE_GFX_VERSION = "10.3.0";
+      HSA_ENABLE_SDMA = "0";
+    };
   };
 
   environment.variables.HSA_OVERRIDE_GFX_VERSION = "10.3.0";
-- 
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