From 1080bd442a7509d29bfe0b29cac9222de406c994 Mon Sep 17 00:00:00 2001
From: comfyanonymous <121283862+comfyanonymous@users.noreply.github.com>
Date: Sat, 28 Feb 2026 19:23:28 -0800
Subject: [PATCH] Disable dynamic vram on wsl. (#12706)

---
 comfy/model_management.py | 8 ++++++++
 main.py                   | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/comfy/model_management.py b/comfy/model_management.py
index f73613f17..86f840ada 100644
--- a/comfy/model_management.py
+++ b/comfy/model_management.py
@@ -180,6 +180,14 @@ def is_ixuca():
         return True
     return False
 
+def is_wsl():
+    version = platform.uname().release
+    if version.endswith("-Microsoft"):
+        return True
+    elif version.endswith("microsoft-standard-WSL2"):
+        return True
+    return False
+
 def get_torch_device():
     global directml_enabled
     global cpu_state
diff --git a/main.py b/main.py
index a0545d9b3..af701f8df 100644
--- a/main.py
+++ b/main.py
@@ -192,7 +192,7 @@ import hook_breaker_ac10a0
 import comfy.memory_management
 import comfy.model_patcher
 
-if enables_dynamic_vram() and comfy.model_management.is_nvidia():
+if enables_dynamic_vram() and comfy.model_management.is_nvidia() and not comfy.model_management.is_wsl():
     if comfy.model_management.torch_version_numeric < (2, 8):
         logging.warning("Unsupported Pytorch detected. DynamicVRAM support requires Pytorch version 2.8 or later. Falling back to legacy ModelPatcher. VRAM estimates may be unreliable especially on Windows")
     elif comfy_aimdo.control.init_device(comfy.model_management.get_torch_device().index):