opencl doesn't work with radeon WX 3100 video card

[Paolo Benvenuto]

Darktable says:

$ darktable -d opencl

** (darktable:13761): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-qHQglvLNCi: Connessione rifiutata
7.369256 [opencl_init] opencl related configuration options:
7.369289 [opencl_init]
7.369294 [opencl_init] opencl: 1
7.369299 [opencl_init] opencl_library: ''
7.369312 [opencl_init] opencl_memory_requirement: 768
7.369320 [opencl_init] opencl_memory_headroom: 300
7.369327 [opencl_init] opencl_device_priority: '*/!0,*/*/*'
7.369339 [opencl_init] opencl_mandatory_timeout: 200
7.369349 [opencl_init] opencl_size_roundup: 16
7.369357 [opencl_init] opencl_async_pixelpipe: 0
7.369362 [opencl_init] opencl_synch_cache: 0
7.369371 [opencl_init] opencl_number_event_handles: 25
7.369381 [opencl_init] opencl_micro_nap: 1000
7.369386 [opencl_init] opencl_use_pinned_memory: 0
7.369395 [opencl_init] opencl_use_cpu_devices: 0
7.369405 [opencl_init] opencl_avoid_atomics: 0
7.369413 [opencl_init]
7.369671 [opencl_init] could not find opencl runtime library 'libOpenCL'
7.369760 [opencl_init] could not find opencl runtime library 'libOpenCL.so'
7.370507 [opencl_init] found opencl runtime library 'libOpenCL.so.1'
7.370562 [opencl_init] opencl library 'libOpenCL.so.1' found on your system and loaded
7.370896 [opencl_init] could not get platforms: -1001
7.370903 [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xserver-xorg-video-amdgpu-hwe-16.04 1.4.0-1~16.04.1
ProcVersionSignature: Ubuntu 4.13.0-37.42~16.04.1-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Mar 23 14:35:32 2018
InstallationDate: Installed on 2018-03-22 (1 days ago)
InstallationMedia: Xubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
SourcePackage: xserver-xorg-video-amdgpu-hwe-16.04
UpgradeStatus: No upgrade log present (probably fresh install)

[BMWDriver (quebecman)]

I also have a Radeon WX 3100 card, and you would have to get the AMDGPU PRO drivers from AMD. However, I saw in the release notes of the latest available drivers (19.Q1 as I write this) that the WX 3100 and the WX 2100 are not supported by their Linux drivers for OpenCL. Perhaps the next iteration of the drivers will.

[Timo Aaltonen (tjaalton)]

16.04 is EOL

[Timo Aaltonen (tjaalton)]

besides, OpenCL support is not installed by default anyway