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Maniphest T83331

Blender 2.91 Multiple RTX graphic cards freeze blender and crash after!
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Description

System Information
Operating system: Windows 10 64bits
Graphics card: RTX 3090, RTX 2080 Ti

Blender Version
Broken: 2.91.0
Worked: (newest version of Blender that worked as expected)

Short description of error

If I select only the graphic card RTX 3090 in the cycles Render devices when i run the cycles render by GPU it render the image correct! but if i select in the Cycles Render devices the 2 graphic cards the RTX 3090 and the RTX 2080 TI when i run the render by gpu the blender get´s freezed and dont recover i need to shutdown the application i test to let it freezed almost 20min and he dont recovers!

How i can solve this issue? and can have both of my cards used to render by GPU?

thank you
best regards

Event Timeline

Sérgio Merêces (smereces) created this task.Dec 2 2020, 4:50 PM
Marco Kalantari (marcokalantari) added a subscriber: Marco Kalantari (marcokalantari).Jan 22 2021, 10:22 AM

Same issue for me. On some projects both graphic cards render properly. On others Blender uses only the 2080 Ti although both cards are checked. And on some renders, when both cards are checked - Blender crashes and closes.

Grayson (Grayson99) added a subscriber: Grayson (Grayson99).Feb 21 2021, 10:02 PM

I have the same issue. 3090 and 2080TI will not work together. Blender freezes when I start to try and render in cycles. However, it works fine when I render with Just the 3090 selected in Optix mode.

The GPUs render fine together in C4D using Octane or Redshift.

Stefan Z Camilleri (szc001) added a subscriber: Stefan Z Camilleri (szc001).Jun 17 2021, 3:04 PM

Same issue here on the latest 2.93.1, as well as 3.0 alpha and Cycles X version.

OS: Windows 10 Pro for Workstations 21390
GPUs: EVGA RTX 2080 Ti FTW3 Ultra + RTX 3090 FE
Test scene: Junk Shop
CUDA: All combinations work just fine.
Optix: 2080 Works just fine, 3090 or 3090+2080 hang on 'loading kernels' (waited for 1hr+)

Omar Emara (OmarSquircleArt) changed the task status from Needs Triage to Needs Information from User.Feb 24 2022, 3:08 PM
Omar Emara (OmarSquircleArt) added a subscriber: Omar Emara (OmarSquircleArt).

Can you confirm that the freezing still happens in version 2.93 and 3.1? https://builder.blender.org/download/daily/
Can you attach your system information file? Help > Save System Info.
Can you also open Blender using the blender_debug_log.cmd file in the same directory as blender.exe then attach the produced blender_debug_log.txt file?

Pratik Borhade (PratikPB2123) closed this task as Archived.Mar 8 2022, 11:13 AM
Pratik Borhade (PratikPB2123) added a subscriber: Pratik Borhade (PratikPB2123).

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.