ComfyUI
ComfyUI copied to clipboard
comfyanonymous
Wan2.1 result is black, when using --use-sage-attention and setting weight_dtype to fp8_e4m3fn.
When using --use-sage-attention and setting weight_dtype to fp8_e4m3fn, the result is black,
Using --use-sage-attention, --force-upcast-attention and setting weight_dtype to fp8_e4m3fn, the result is still black.
I am having the same issue. sage attention isn't working with native wan implementation but works with kijai nodes.
same, was keep getting black screen untill I saw your post ! thanks
Have you solved this problem? I've re-downloaded the model several times(wan2.1_t2v_1.3B_bf16.safetensors wan2.1_t2v_14B_fp8_e4m3fn.safetensors), and I've re-updated the VAE and re-downloaded it. I'll even re-download the software"ComfyUI_windows_portable 0.3.18", It's very clean. There's no other plug-ins, I load the default comfy_org workflow and run it, It's still black output without any report or an erro. AND,There's nothing wrong with me using KJ's workflow.That's weird. How to fix it? Can anyone tell me that, PLZ. 3 days, I'm falling apart
Have you solved this problem? I've re-downloaded the model several times(wan2.1_t2v_1.3B_bf16.safetensors wan2.1_t2v_14B_fp8_e4m3fn.safetensors), and I've re-updated the VAE and re-downloaded it. I'll even re-download the software"ComfyUI_windows_portable 0.3.18", It's very clean. There's no other plug-ins, I load the default comfy_org workflow and run it, It's still black output without any report or an erro. AND,There's nothing wrong with me using KJ's workflow.That's weird. How to fix it? Can anyone tell me that, PLZ. 3 days, I'm falling apart
just use the comfyui without sage attention argument for now
Have you solved this problem? I've re-downloaded the model several times(wan2.1_t2v_1.3B_bf16.safetensors wan2.1_t2v_14B_fp8_e4m3fn.safetensors), and I've re-updated the VAE and re-downloaded it. I'll even re-download the software"ComfyUI_windows_portable 0.3.18", It's very clean. There's no other plug-ins, I load the default comfy_org workflow and run it, It's still black output without any report or an erro. AND,There's nothing wrong with me using KJ's workflow.That's weird. How to fix it? Can anyone tell me that, PLZ. 3 days, I'm falling apart
Having same black outputs issue not using sage, and have updated everything I can think of with same result each time.
After every test I could think and using different start arguments I gave in and tried Kijai and yes it works I get video so what is going on different? What can we provide to assist should this be broken into a new issue?
- To fix black video
Thank you! And I can confirm after trying everything else, this fixes it :)
This happened to me after I installed LTX Video. Maybe those nodes change something in sageattention. Anyway, the KJ patch node fixes it for me too. Tgnaks!
