cycles viewport rendering gets stuck on loading kernels if more than one instance of portable blender is open #107751

Closed
opened 2023-05-08 19:07:23 +02:00 by michael campbell · 12 comments

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 526.98

Blender Version
Broken: version: 3.5.1 Release Candidate, branch: blender-v3.5-release, commit date: 2023-04-21 11:31, hash: 93dac7da2c6a
Worked: (unsure exactly, but it definitely used to work)

Short description of error
Cycles viewport rendering gets stuck on loading kernels if more than one instance of portable blender is open.

Exact steps for others to reproduce the error

  1. Open blender and turn on viewport rendering.
  2. Go back to solid view.
  3. Open another blender.
  4. Copy the contents of the first file to the second (not sure if this is necessary).
  5. Turn on cycles viewport in the second instance.

I can't share the file, but it's happened before so doesn't appear to be file specific.

**System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 526.98 **Blender Version** Broken: version: 3.5.1 Release Candidate, branch: blender-v3.5-release, commit date: 2023-04-21 11:31, hash: `93dac7da2c6a` Worked: (unsure exactly, but it definitely used to work) **Short description of error** Cycles viewport rendering gets stuck on loading kernels if more than one instance of portable blender is open. **Exact steps for others to reproduce the error** 1. Open blender and turn on viewport rendering. 2. Go back to solid view. 3. Open another blender. 4. Copy the contents of the first file to the second (not sure if this is necessary). 5. Turn on cycles viewport in the second instance. I can't share the file, but it's happened before so doesn't appear to be file specific.
michael campbell added the
Priority
Normal
Type
Report
Status
Needs Triage
labels 2023-05-08 19:07:24 +02:00
Iliya Katushenock added the
Interest
Render & Cycles
label 2023-05-08 19:13:25 +02:00

Hey, can you check if that alredy fixed in last 3.6 version? Just to be sure.

Hey, can you check if that alredy fixed in last 3.6 version? Just to be sure.

I have this version not too old. This is after opening 3.6 after closing 3.5.1

image

I have this version not too old. This is after opening 3.6 after closing 3.5.1 ![image](/attachments/5d749ad5-4235-46b2-9d16-61bf56a27ba6)
1.2 MiB

I'm not using viewport denoising by the way, that's the only time I've seen it previously if using optix viewport denoising. system is set to CUDA GPU only.

I'm not using viewport denoising by the way, that's the only time I've seen it previously if using optix viewport denoising. system is set to CUDA GPU only.

I can't reproduce issues in
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 527.56
Version: 3.6.0 Alpha, branch: main, commit date: 2023-05-04 09:04, hash: e674e32aa122

I can't reproduce issues in Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 527.56 Version: 3.6.0 Alpha, branch: main, commit date: 2023-05-04 09:04, hash: `e674e32aa122`

This seems like a graphic driver issue. Please double-check if the drivers are up to date.

To upgrade to the latest driver, see here for more information: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

This seems like a graphic driver issue. Please double-check if the drivers are up to date. To upgrade to the latest driver, see here for more information: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html
Member

Unable to replicate either. Share .blend if particular setup is required to redo the issue.

**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop 
Unable to replicate either. Share .blend if particular setup is required to redo the issue. ``` **System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop ```
Pratik Borhade added
Status
Needs Information from User
and removed
Status
Needs Triage
labels 2023-05-09 18:32:29 +02:00

I can't update the drivers at the moment, but if both of you aren't having issues, close it down, and I'll make a new report if it continues after updating the drivers 👍

I can't update the drivers at the moment, but if both of you aren't having issues, close it down, and I'll make a new report if it continues after updating the drivers 👍
Member

BTW, does this happen in any blend file?

BTW, does this happen in any blend file?

yes 👍

yes 👍
Member

Thanks, I will reset the status so others can check this.
Still it would be helpful if you provide .blend file to speed up the process.

Thanks, I will reset the status so others can check this. Still it would be helpful if you provide .blend file to speed up the process.
Pratik Borhade added
Status
Needs Triage
and removed
Status
Needs Information from User
labels 2023-05-15 10:28:00 +02:00

happens in the default scene. Close it down though mate, sounds like it's driver related if it's not happening to you two. I'll create a new report if necessary when I can update my drivers.

happens in the default scene. Close it down though mate, sounds like it's driver related if it's not happening to you two. I'll create a new report if necessary when I can update my drivers.
Member

ok, will close.

ok, will close.
Blender Bot added
Status
Archived
and removed
Status
Needs Triage
labels 2023-05-15 10:46:29 +02:00
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Reference: blender/blender#107751
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