Cycles render engine not working with GPU compute #76406

New Issue

Shankha · 2020-05-04T15:53:53+02:00

Shankha commented

2020-05-04 15:53:53 +02:00

System Information
Operating system: WIndows 10
Graphics card: 1660ti

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: 375c7dc4ca, type: Release
build date: 2020-03-12, 15:41:08
Worked: NA

When i select the GPU compute on the cycles render engine under render properties, the viewport shading: rendered stops working.
Most of the times it is a freeze frame of the last rendered viewport from the CPU, other times its just a blank workspace.
I can move my model around, pan, zoom etc, but the model is not visible.

Exact steps for others to reproduce the error

Start blender
Open project
Change to layout tab
Change device to GPU compute under render properties
Change viewport shading to rendered

I zoomed out and moved the view to different perspective. You can see the actual model of the donuts in the top right of the rendered donut.

My blender preferences are given below

After deselecting and selecting the GPU compute, the rendered donut is lost

**System Information** Operating system: WIndows 10 Graphics card: 1660ti **Blender Version** Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: 375c7dc4caf4, type: Release build date: 2020-03-12, 15:41:08 Worked: NA When i select the GPU compute on the cycles render engine under render properties, the viewport shading: rendered stops working. Most of the times it is a freeze frame of the last rendered viewport from the CPU, other times its just a blank workspace. I can move my model around, pan, zoom etc, but the model is not visible. **Exact steps for others to reproduce the error** 1. Start blender 2. Open project ![image.png](https://archive.blender.org/developer/F8511900/image.png) 3. Change to layout tab ![image.png](https://archive.blender.org/developer/F8511902/image.png) 4. Change device to GPU compute under render properties ![image.png](https://archive.blender.org/developer/F8511904/image.png) 5. Change viewport shading to rendered ![image.png](https://archive.blender.org/developer/F8511908/image.png) I zoomed out and moved the view to different perspective. You can see the actual model of the donuts in the top right of the rendered donut. ![image.png](https://archive.blender.org/developer/F8511913/image.png) My blender preferences are given below ![image.png](https://archive.blender.org/developer/F8511918/image.png) After deselecting and selecting the GPU compute, the rendered donut is lost ![image.png](https://archive.blender.org/developer/F8511925/image.png)

Shankha commented

2020-05-04 15:53:53 +02:00

Added subscriber: @Shankha

Shankha commented

2020-05-04 15:55:59 +02:00

donut.blend

Added the project files

[donut.blend](https://archive.blender.org/developer/F8511934/donut.blend) ![Donut.png](https://archive.blender.org/developer/F8511940/Donut.png) Added the project files

Alaska commented

2020-05-05 02:03:40 +02:00

Added subscriber: @Alaska

Alaska commented

2020-05-05 02:03:40 +02:00

Are you able to try updating your GPU drivers? https://www.nvidia.com/Download/index.aspx
Are you also able to test Blender 2.83 and 2.90? https://builder.blender.org/download/

Are you able to try updating your GPU drivers? https://www.nvidia.com/Download/index.aspx Are you also able to test Blender 2.83 and 2.90? https://builder.blender.org/download/

Alaska commented

2020-05-05 02:04:20 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Shankha commented

2020-05-05 21:16:39 +02:00

Yes i have the latest nvidia studio drivers. I have also tried with the game ready drivers. Same results.

I have not tested with the 2.83 or the 2.90 versions. I will give these a try and get back to you

Yes i have the latest nvidia studio drivers. I have also tried with the game ready drivers. Same results. I have not tested with the 2.83 or the 2.90 versions. I will give these a try and get back to you

Alaska commented

2020-05-06 01:31:48 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Alaska commented

2020-05-06 01:31:48 +02:00

@Shankha I'm sorry I'm unable to offer much help. It's just that so many people that use GPU rendering don't experience this issue. For example, I don't experience any issues with my GTX 1050ti.
Hopefully someone else is able to help you with this issue.
But you should defiantly test Blender 2.83 and 2.90 just in case your issues is fixed with those.
Another thing you could try is selecting from the top of Blender "File>Defaults>Load Factory Settings" then open your donut file and retest. (You will need to re-enable your GPU in preferences)

@Shankha I'm sorry I'm unable to offer much help. It's just that so many people that use GPU rendering don't experience this issue. For example, I don't experience any issues with my GTX 1050ti. Hopefully someone else is able to help you with this issue. But you should defiantly test Blender 2.83 and 2.90 just in case your issues is fixed with those. Another thing you could try is selecting from the top of Blender "File>Defaults>Load Factory Settings" then open your donut file and retest. (You will need to re-enable your GPU in preferences) ![image.png](https://archive.blender.org/developer/F8511918/image.png)

Shankha commented

2020-05-06 16:24:37 +02:00

@Alaska
I tried all the things suggested-

Tried 2.83
2.90
Factory reset
I also tried some other versions
The portable version
2.7b (couldn't open file)

I thought maybe its an issue with my donut file, so i created a new project with the default cube. Tried the GPU compute

None of them work. All have same issue

I tried just changing to GPU compute and pressed F12 to render. I get the following error message

CUDA Error at cuCtxCreate: Misaligned address

Any idea what this might be due to?

@Alaska I tried all the things suggested- 1. Tried 2.83 2. 2.90 3. Factory reset I also tried some other versions 4. The portable version 5. 2.7b (couldn't open file) I thought maybe its an issue with my donut file, so i created a new project with the default cube. Tried the GPU compute None of them work. All have same issue I tried just changing to GPU compute and pressed F12 to render. I get the following error message CUDA Error at cuCtxCreate: Misaligned address ![image.png](https://archive.blender.org/developer/F8516201/image.png) Any idea what this might be due to?

Shankha commented

2020-05-06 16:30:50 +02:00

Found a solution!

Seems like overclocked GPU doesn't play well with blender.

I had a 190Mhz overclock on my gpu.
I reverted it and GPU compute works fine

Source:
https://www.reddit.com/r/blender/comments/dm7kww/cuda_error_at_cuctxcreate_misaligned_address/

Found a solution! Seems like overclocked GPU doesn't play well with blender. I had a 190Mhz overclock on my gpu. I reverted it and GPU compute works fine Source: https://www.reddit.com/r/blender/comments/dm7kww/cuda_error_at_cuctxcreate_misaligned_address/

Eitan Traurig commented

2020-05-06 16:32:09 +02:00

Changed status from 'Needs Triage' to: 'Archived'

Eitan Traurig closed this issue

2020-05-06 16:32:09 +02:00

Eitan Traurig self-assigned this 2020-05-06 16:32:09 +02:00

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Cycles render engine not working with GPU compute #76406