AMD Radeon Open CL support in DT?

Software darktable
1

I have upgraded my graphic card to a Radeon RX 6600 AMD card, 8GB. The CPU is a Ryzen 7 5700XX with a Chipset B550M DS3H (Gigabyte) and 32 GB of DDR4 RAM.
I have read, that one may have to edit settings in the darktablerc file to fully harvest the opencl support.

  1. Is this true?
  2. If so, which settings will I have to change?
    On my earlier system Export, diffusion&sharpness and some other modules took really long, so opencl support might really be beneficial. I will be happy to read your comments!
    Cheers
2

Well, I remember that subject under discussion here. Perhaps a forum search would help?

And in general, if you have more technical or system-related questions, providing at least the OS (and distribtion/version where applicable) tends to help getting answers.

3

Well, for the last 1,5 year I’ve been using RX 7800 XT, now RX 9070 XT and OpenCL works out of the box and is fast. (Under Windows 11)

4

Ah, thank you. That sounds quite hopeful.

5

Uups, my system ist Ubuntu latest LTS version 24.04.

6

Works fine with my 6700XT, no darktablerc tweaking here

7

I’ve had good luck using AMD ROCm for darktable on Ubuntu 24.04 LTS with a Radeon RX 5700 XT and my current card, an RX 7800 XT. No tweaks necessary, just follow the directions for amdgpu-install.