Split kernel error: failed to load kernel_lamp_emission on 2.93+ #87726
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Reference: blender/blender#87726
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System Information
Operating system: Linux Mint 20.1 Cinnamon, Linux-5.4.0-72-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: AMD Radeon RX 570 Series ATI Technologies Inc. 4.5.14735 Core Profile Context 21.10 (Driver: amdgpu 21.10)
Blender Version
Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-04-21 20:15, hash:
0f66dbea90, 3.0.0-932b23782a5eWorked: 2.83.13 LTS, 2.83.14-d35974cd870b, (all previous LTS at this date)
Short description of error
When trying to switch to Viewport Rendering/Viewport Shading on versions 2.93+ it throws the said error (Split kernel error: failed to load kernel_lamp_emission)
Exact steps for others to reproduce the error
Here's my system-info.txt:
system-info2.93.txt
And the console dump if it's useful (made using the args --debug and --debug-cycles)
blenderconsoledump2.93.txt
Added subscriber: @PANCHO7532
Added subscriber: @enenra
System Information
Operating system: Linux-5.12.1-custom-x86_64-AMD_Ryzen_5_5600X_6-Core_Processor-with-glibc2.33 64 Bits
Graphics card: AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.40.0, 5.12.1-custom, LLVM 11.1.0) AMD 4.6 (Core Profile) Mesa 21.0.3
Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-05-04 14:46, hash:
f8f6e0b256Broken: version: 2.93.0 Beta, branch: master, commit date: 2021-05-03 20:45, hash:
874c70d088Worked: version: 2.83.13, branch: master, commit date: 2021-03-09 07:21, hash:
bb50046730Short description of error
I have the exact same issue.
Added subscriber: @mano-wii
Thanks for the report.
We are aware of this problem.
It has been reported before in #84461 (Cycles: Split kernel error with OpenCL).
This appears to be a limitation of AMD graphics drivers.
The cycles development team is looking for an alternative solution.
Closed as duplicate of #84461
Added subscriber: @SonidosEnArmonia
Until amd or blender fixes this, I suggest you try this:
Go into render view until you get the kernel errors. THen click on solid mode and wait several minutes until blender responds. It may seem its not responsive but it might be compiling the renders under the hood. After some minutes the kernels might be compiled and you blender becomes responsive again. Go again into render mode and it should work ( or maybe you should do this a couple of times. Volumetrics though don't work no matter what you do in my exp.