> 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 -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to darktable in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/darktable/+bug/1762846/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp