Triton "0 active drivers"

What happened?

Steps to reproduce
C:\pinokio\api\comfy.git\app>conda_hook & conda deactivate & conda deactivate & conda deactivate & conda activate base & C:\pinokio\api\comfy.git\app\env\Scripts\activate C:\pinokio\api\comfy.git\app\env && python main.py --directml
[INFO] setup plugin alembic.autogenerate.schemas
[INFO] setup plugin alembic.autogenerate.tables
[INFO] setup plugin alembic.autogenerate.types
[INFO] setup plugin alembic.autogenerate.constraints
[INFO] setup plugin alembic.autogenerate.defaults
[INFO] setup plugin alembic.autogenerate.comments
[INFO] setup plugin alembic.ext.checkconstraint_byname
[WARNING] On windows we are currently forcing single GPU mode in ComfyUI due to a Nvidia related issue, if you want to disable this use: --cuda-device all
[START] Security scan
[DONE] Security scan

ComfyUI-Manager: installing dependencies done.

** ComfyUI startup time: 2026-09-13 16:59:08.998
** Platform: Windows
** Python version: 3.10.20 | packaged by conda-forge | (main, Jun 11 2026, 03:28:51) [MSC v.1944 64 bit (AMD64)]
** Python executable: C:\pinokio\api\comfy.git\app\env\Scripts\python.exe
** ComfyUI Path: C:\pinokio\api\comfy.git\app
** ComfyUI Base Folder Path: C:\pinokio\api\comfy.git\app
** User directory: C:\pinokio\api\comfy.git\app\user
** ComfyUI-Manager config path: C:\pinokio\api\comfy.git\app\user_manager\config.ini
** Log path: C:\pinokio\api\comfy.git\app\user\comfyui.log
[INFO]
Prestartup times for custom nodes:
[INFO] 1.6 seconds: C:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-Manager
[INFO]
Traceback (most recent call last):
File "C:\pinokio\api\comfy.git\app\main.py", line 249, in
import comfy.utils
File "C:\pinokio\api\comfy.git\app\comfy\utils.py", line 25, in
import comfy.memory_management
File "C:\pinokio\api\comfy.git\app\comfy\memory_management.py", line 8, in
from comfy.quant_ops import QuantizedTensor
File "C:\pinokio\api\comfy.git\app\comfy\quant_ops.py", line 8, in
import comfy_kitchen as ck
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\comfy_kitchen_init.py", line 7, in
from .backends import triton as triton_backend # noqa: F401
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\comfy_kitchen\backends\triton_init.py", line 58, in
from .quantization import (
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\comfy_kitchen\backends\triton\quantization.py", line 872, in
def _int8_matmul_dequant_kernel(
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\triton\runtime\autotuner.py", line 378, in decorator
return Autotuner(fn, fn.arg_names, configs, key, reset_to_zero, restore_value, pre_hook=pre_hook,
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\triton\runtime\autotuner.py", line 130, in init
self.do_bench = driver.active.get_benchmarker()
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\triton\runtime\driver.py", line 23, in getattr
self._initialize_obj()
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\triton\runtime\driver.py", line 20, in _initialize_obj
self._obj = self._init_fn()
File "C:\pinokio\api\comfy.git\app\env\lib\site-packages\triton\runtime\driver.py", line 8, in _create_driver
raise RuntimeError(f"{len(actives)} active drivers ({actives}). There should only be one.")
RuntimeError: 0 active drivers ([]). There should only be one.

1.

Your system (OS / GPU / RAM / VRAM / etc.)

Logs / full error output

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