From 4fcb92dfdc5652617c2294e0fe494478bb720f86 Mon Sep 17 00:00:00 2001
From: Kelsi <kelsihates2fa@gmail.com>
Date: Tue, 24 Mar 2026 10:11:21 -0700
Subject: [PATCH] fix: skip FSR3 frame gen on non-AMD GPUs to prevent NVIDIA
 driver crash
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The AMD FidelityFX FSR3 runtime corrupts Vulkan driver state when
context creation fails on NVIDIA GPUs, causing vkCmdBeginRenderPass
to SIGSEGV inside libnvidia-glcore. Gate FSR3 frame gen initialization
behind isAmdGpu() check — FSR2 upscaling still works on all GPUs.
---
 src/rendering/renderer.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/rendering/renderer.cpp b/src/rendering/renderer.cpp
index 6e3d46c1..e39621c6 100644
--- a/src/rendering/renderer.cpp
+++ b/src/rendering/renderer.cpp
@@ -4392,7 +4392,11 @@ bool Renderer::initFSR2Resources() {
                 fsr2_.useAmdBackend = true;
                 LOG_INFO("FSR2 AMD: context created successfully.");
 #if WOWEE_HAS_AMD_FSR3_FRAMEGEN
-                if (fsr2_.amdFsr3FramegenEnabled) {
+                // FSR3 frame generation runtime uses AMD FidelityFX SDK which can
+                // corrupt Vulkan driver state on NVIDIA GPUs when context creation
+                // fails, causing subsequent vkCmdBeginRenderPass to crash.
+                // Skip FSR3 frame gen entirely on non-AMD GPUs.
+                if (fsr2_.amdFsr3FramegenEnabled && vkCtx->isAmdGpu()) {
                     fsr2_.amdFsr3FramegenRuntimeActive = false;
                     if (!fsr2_.amdFsr3Runtime) fsr2_.amdFsr3Runtime = std::make_unique<AmdFsr3Runtime>();
                     AmdFsr3RuntimeInitDesc fgInit{};