OpenCL with Intel GPU freezes Blender on Linux #83308
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Reference: blender/blender#83308
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System Information
Operating system: Linux Mint 20 and 19.3
Graphics card: Intel UHD Graphics 600 and Intel UHD Graphics 630
Blender Version
Broken: 2.90.1
Worked: unknown
Short description of error
Blender freezes on OpenCL selection.
Exact steps for others to reproduce the error
Added subscriber: @z-uo
Added subscriber: @rjg
Changed status from 'Needs Triage' to: 'Needs User Info'
Based on the description this may be an issue with the OpenCL driver, depending on why it freezes. Could you please start Blender with the
--debugand--debug-gpuflags and redirect the output in a file. Perhaps this tells us why Blender is freezing.test.log
in this file you can find the log, I do not see nothing strange. I do the same thing also for the computer with UHD600 and I have the same log without some line:
test2.log
Changed status from 'Needs User Info' to: 'Needs Triage'
Added subscriber: @jesterking
I don't see any errors in the logs. Are you able to save Blender's system information (Help > Save System Info)? If yes, please upload that file.
According to @jesterking in #67954 the Intel OpenCL driver caused issues in the past, so this might be related.
Changed status from 'Needs Triage' to: 'Needs User Info'
No, I cannot, after the click on OpenCL the blender window is frozen, I can move my mouse, but blender does not do response. It is literally frozen.
The problems seams to be easy to replicate by developers, but I do not know how to help. Do you have any suggestions? Can I debug it by myself in a different way?
@z-uo I didn't mean after changing the preferences. Just open Blender and then try to select Help > Save System Info in the top menu.
system-info_1h.txt file for the UHD 600. Strangely after saving this file blender freeze but I think that it saves it correctly.
@z-uo no the file is incomplete. Trying to get the OpenCL devices seems to generally cause the freeze then. Have you check if it works properly when you uninstall
intel-opencl-icd?I simply do
Can I exec something else?
If you want to uninstall, then use
sudo apt uninstall intel-opencl-icd.And after uninstall what can I do? I try to reinstall? (If I uninstall it when I go to the tab blender say me that open cl is not installed.)
One of our GPU devs will have to take a look. As far as I'm aware the OpenCL rendering using the Intel OpenCL driver is not officially supported by Blender.
Ok, because I read that the only requirement is OpenGL>3.3 and it is true for the GPUs but this GPUs are not powerful, maybe exist other limitation? And those GPUs is not supported? Where I can find a list of supported GPUs?
You're referring the [minimum requirements ]], the requirements for [ https:*docs.blender.org/manual/en/latest/render/cycles/gpu_rendering.html#supported-hardware | GPU rendering are higher. According to the manual we only officially support OpenCL rendering on AMD GPUs.
Changed status from 'Needs User Info' to: 'Archived'
The version of opengl is correct, but the memory is shared and not dedicated, it can be the problem, so all the family of this gpus are not supported I think, thank you for the support!