Radeon RX Vega M GL not recognized on Linux #68009
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Reference: blender/blender#68009
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System Information
Operating system: Mageia 7 x86_64 (Linux)
Graphics card: Intel HD Graphics 630 + discrete AMD Radeon RX Vega M GL
Blender Version
Broken: 2.80 (release) and 2.81-5359b7a03307 (2019-07-30)
Worked: not tested
Short description of error
My HP Spectre x360 laptop has an integrated Intel HD Graphics 630 processor, as well as a discrete AMD Radeon RX Vega M GL.
I use the open source Mesa 19.1.3 driver for both of them, with kernel/amdgpu 5.1.20 for the latter.
To use the discrete GPU, I use the
DRI_PRIME=1
environment variable.Blender then throws this warning in the terminal:
System info: system-info.txt
While the above file shows that the OpenCL capabilities of the AMD GPU seem fine (confirmed by
opencl
), it is not listed as recognized in Edit > Settings > System.Exact steps for others to reproduce the error
DRI_PRIME=1 ./blender
on a system with AMD Radeon RX Vega M GL.Added subscriber: @akien
I found that this might be related to https://developer.blender.org/D2171 since my AMD GPU does use Mesa's Clover OpenCL implementation:
Added subscriber: @Memento
For the reference, D5392 does not fix that.
OpenCL capabilities are checked in
7c5838cfd6
:/intern/cycles/device/opencl/opencl_util.cpp#l731 and currently the only supported devices seem to have to matchAMD Accelerated Parallel Processing
(I assume it's the platform name on Windows?), which my device doesn't match (AMD VEGAM (DRM 3.30.0, 5.1.20-desktop-2.mga7, LLVM 8.0.0)
).That being said, there might be a good reason for it :)
I brute-forced support for my card with:
and it then shows up as a possible OpenCL platform:
But attempting a Cycles render of default cube with this card leads to various errors which point to an OpenCL version mismatch?
Added subscribers: @fclem, @ZedDB
@fclem I guess we just add Vega M to the GPU string list?
@akien You will not be able to use Clover with blender. It can not handel Cycles and there for we have disabled it.
The warning message is harmless.
This issue was referenced by
b57d386dc1
Changed status from 'Open' to: 'Resolved'