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[Erich Eickmeyer  <1762846@xxxxxxxxxxxxxxxxxx>]

> Should darktable depend on nvidia-opencl-dev

No, because that would potentially install nvidia dependencies for those
that don't need it. Therefore, those that need opencl support on nvidia
should do as you did and install nvidia-opencl-dev.

Closing this as this was a support issue, not a packaging issue, and
should never have been open in the bug tracker as bug trackers are not
places for support questions.

** Changed in: darktable (Ubuntu)
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1762846

Title:
  OpenCL disabled on nvidia

Status in darktable package in Ubuntu:
  Invalid

Bug description:
  OpenCL is not enabled by default.

  Steps to reproduce :
   * install the nvidia driver
   * install darktable
   * run darktable on command line : $darktable -d opencl

  =>
  [opencl_init] could not find opencl runtime library 'libOpenCL'
  0.159268 [opencl_init] could not find opencl runtime library 'libOpenCL.so'
  0.159327 [opencl_init] could not find opencl runtime library 'libOpenCL.so.1'
  0.159333 [opencl_init] no working opencl library found. Continue with opencl disabled
  0.159336 [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.

  Workaround : install package nvidia-opencl-dev

  Should darktable depend on nvidia-opencl-dev ?

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: darktable 2.4.2-1
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu4
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Apr 10 23:49:56 2018
  InstallationDate: Installed on 2018-04-09 (1 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180407)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: darktable
  UpgradeStatus: No upgrade log present (probably fresh install)

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