GPU Compute option for cycles incorrectly disabled. #73676

New Issue

Charlotte Gore · 2020-02-08T14:39:23+01:00

Charlotte Gore commented

2020-02-08 14:39:23 +01:00

System Information
Operating system:
Windows 10 Professional
Graphics card:
Nvidia GTX 1080

Blender Version
Broken: 2.82 Beta (all versions going back at least a month)
Worked: 2.81a

Short description of error

GPU Compute is greyed out in the cycles render properties and rendering is done by the CPU. If I go into Preferences -> System, add my CPU as a CUDA target then the GPU compute option is no longer greyed out. I then untick the CPU and rendering is then done on the GPU instead of the CPU. I need to do this process every time I restart Blender in order to use GPU rendering.

Exact steps for others to reproduce the error
This happens in every system file and on every version of 2.82. Reproduction steps are to start with the default scene, select Cycles as renderer. GPU compute is disabled.

**System Information** Operating system: Windows 10 Professional Graphics card: Nvidia GTX 1080 **Blender Version** Broken: 2.82 Beta (all versions going back at least a month) Worked: 2.81a **Short description of error** GPU Compute is greyed out in the cycles render properties and rendering is done by the CPU. If I go into Preferences -> System, add my CPU as a CUDA target then the GPU compute option is no longer greyed out. I then untick the CPU and rendering is then done on the GPU instead of the CPU. I need to do this process every time I restart Blender in order to use GPU rendering. **Exact steps for others to reproduce the error** This happens in every system file and on every version of 2.82. Reproduction steps are to start with the default scene, select Cycles as renderer. GPU compute is disabled.

Charlotte Gore commented

2020-02-08 14:39:23 +01:00

Added subscriber: @huttbutter

Robert Guetzkow commented

2020-02-08 15:23:33 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-02-08 15:23:33 +01:00

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

Robert Guetzkow commented

2020-02-08 15:23:33 +01:00

You shouldn't have to enable / disable the CPU in the CUDA tab if your goal it to render on the GPU.

Is your Nvidia GTX 1080 enabled in the CUDA tab?
Do you keep the CUDA tab marked as active?
Are you saving your preferences or do you have auto-save for the preferences enabled?

You shouldn't have to enable / disable the CPU in the CUDA tab if your goal it to render on the GPU. - Is your Nvidia GTX 1080 enabled in the CUDA tab? - Do you keep the CUDA tab marked as active? - Are you saving your preferences or do you have auto-save for the preferences enabled?

Charlotte Gore commented

2020-02-08 15:28:23 +01:00

Yes, the GTX 1080 is showing as enabled and detected as a valid CUDA device in preferences.
I wouldn't know how to do that.
Yep, saved the preferences manually. No matter what, every time I restart blender, GPU compute in the Render Properties panel will show as disabled until I toggle the CPU as a CUDA device in preferences.

GPU is being correctly identified as a CUDA device in preferences, but not in Render Properties.

- Yes, the GTX 1080 is showing as enabled and detected as a valid CUDA device in preferences. - I wouldn't know how to do that. - Yep, saved the preferences manually. No matter what, every time I restart blender, GPU compute in the Render Properties panel will show as disabled until I toggle the CPU as a CUDA device in preferences. GPU is being correctly identified as a CUDA device in preferences, but not in Render Properties.

Charlotte Gore commented

2020-02-08 15:31:33 +01:00

And it definitely is running renders on the GPU, obviously there's a huge speed difference and I can see the compute core on the GPU going to 100% in windows task manager. :)

Robert Guetzkow commented

2020-02-08 15:35:47 +01:00

I wouldn't know how to do that.

What I meant was that the CUDA tab is still selected (highlighted in blue) and that you're not switching to a different tab (None, OpenCL, Optix).

Does this issue only affect your selection for GPU rendering or are other preferences also not saved/applied correctly?

> I wouldn't know how to do that. What I meant was that the CUDA tab is still selected (highlighted in blue) and that you're not switching to a different tab (*None*, *OpenCL*, *Optix*). Does this issue only affect your selection for GPU rendering or are other preferences also not saved/applied correctly?

Charlotte Gore commented

2020-02-08 15:38:14 +01:00

Oh, right, yes then I'm still on the CUDA tab. I've not seen any other problems with preferences. As far as I can tell the preference IS being set (and, in fact, automatically detected correctly), but perhaps it's not got the right value when read by Render Properties initially. Hmm.

Robert Guetzkow commented

2020-02-08 15:53:10 +01:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Felix Remy commented

2020-03-29 00:46:34 +01:00

Added subscriber: @MistahX99

Felix Remy commented

2020-03-29 00:46:34 +01:00

Same card same problem although I'm on 2.80

Sheldon Fairfoot commented

2020-06-09 20:30:55 +02:00

Added subscriber: @S.Fairfoot

Sheldon Fairfoot commented

2020-06-09 20:30:55 +02:00

This issue is present on my system as well using a GTx 1070.
Did a driver update on the GPU and still need to disable the CPU in preferences before the GPU option in cycles is no longer greyed out.
Before most recent updates of GPU and other system updates together with a new SSD installation, this issue was not present.

This issue is present on my system as well using a GTx 1070. Did a driver update on the GPU and still need to disable the CPU in preferences before the GPU option in cycles is no longer greyed out. Before most recent updates of GPU and other system updates together with a new SSD installation, this issue was not present.

Robert Guetzkow commented

2020-06-09 23:10:59 +02:00

Everyone affected by this issue, please try if it is still present in Blender 2.83 starting with the factory default settings.

Jeroen Bakker commented

2020-06-15 10:49:33 +02:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker commented

2020-06-15 10:49:33 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Needs User Info'

Jeroen Bakker commented

2020-06-15 10:49:33 +02:00

There is no mentioning of any driver versions in this report. Can anyone go to Blender's Help menu and Press Save System Info... This will generate a file with the drivers versions and other related info what could perhaps find the cause. Please upload that file here.

Robert Guetzkow commented

2020-06-26 21:11:46 +02:00

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

Robert Guetzkow closed this issue

2020-06-26 21:11:46 +02:00

Robert Guetzkow self-assigned this 2020-06-26 21:11:46 +02:00

Robert Guetzkow commented

2020-06-26 21:11:46 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

GPU Compute option for cycles incorrectly disabled. #73676