[darktable-user] Tone equaliser and response time during zooming/panning on 4K display (dt 3.2.1-Windows 10)

[Marc Cabuy]

Gian-Luca,   Just a little warning about purchasing a 4K display.  You indeed will need a good GPU. But still there is (or are) module(s) that are fully cpu-bound. That’s the case with tone equaliser. Interactive response when zooming and panning in the darkroom may suffer from poor response time on a 4K display (3840x2160) when you have a tone equaliser module activated in the module stack.  That’s my experience with dt 3.2.1 for Windows on my 16mp pictures. That issue is not existing that much on my WQHD display (2560x1440) or almost not on a HD display  (1920x1080).   I repeat: it’s experience with dt 3.2.1 for Windows. I am not aware on how it behaves on Linux.     Marc     Van: GianLuca Sarto Verzonden: zondag 15 november 2020 21:30 Aan: darktable-user@lists.darktable.org Onderwerp: Re: [darktable-user] Ubuntu 20.04, OpenCL, DT3.2.1, Radeon HD5400   thanks, Šarūnas,   I have two Darktable systems, based on Lenovo TS140, one with AMD, the other with Nvidia Quadro 400. Neither of the two manage OpenCL..   0.039390 [opencl_init] found opencl runtime library 'libOpenCL' 0.039412 [opencl_init] opencl library 'libOpenCL' found on your system and loaded 0.042560 [opencl_init] found 1 platform 0.042582 [opencl_init] found 1 device 0.042727 [opencl_init] device 0 `Quadro 400' has sm_20 support. 0.042778 [opencl_init] discarding device 0 `Quadro 400' due to insufficient global memory (511MB). 0.042784 [opencl_init] no suitable devices found. 0.042788 [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.   I would like to upgrade one of the two systems to a 4K display, so was already decided to purchase a new video card.   Is there a tested solution that works out of the box, or a list of DT OpenCL compliant cards for Linux?       On 15/11/20 15:34, Šarūnas wrote: > On 11/14/20 3:41 PM, GianLuca Sarto wrote: >> Hello All, >>  >> DT 3.2.1 here, running on Ubuntu 20.04, Radeon HD5400. >>  >> OpenCL should be working, however DT complains "could not get platforms" >> (see below). > Support for Radeon HD5xxx may have ended with fglrx (Ubuntu 16.04?). >  > You may check what is currently supported, > by proprietary AMDGPU-PRO: > https://www.amd.com/en/support >  > by open source ROCm: > https://github.com/RadeonOpenCompute/ROCm#Hardware-and-Software-Support >    ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org     ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org