darktable-org / darktable-org/darktable

Lumix S1RII - Visual difference between Mac and Linux

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#21,062 6 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C
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Description

Is there an existing issue for this?
  • I checked and did not find my issue in the already reported ones
Describe the bug

Darktable version : 5.4.1

White balance and exposure are different from MAC and Linux version with Panasonic Lumix S1RII

I m using same RAW, same xmp, same export settings

I can provide RAW and xmp to reproduce but cannot upload here (even zip not working)

Steps to reproduce
Image Image Image Image
Expected behavior

Should not have difference between os (I tested with Lumix S5II files and it works)

Logfile | Screenshot | Screencast

No response

Commit

No response

Where did you obtain darktable from?

darktable.org / GitHub release

darktable version

5.4.1

What OS are you using?

Linux

What is the version of your OS?

Ubuntu 24.04

Describe your system

Use Ubun 24.04 and Mac OS

Are you using OpenCL GPU in darktable?

Yes

If yes, what is the GPU card and driver?

No response

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source files or tests are named. First reproduce the report with the same Lumix S1RII RAW and XMP on macOS and Ubuntu 24.04, including the OpenCL setting, and collect the missing RAW/XMP, logs, and GPU details. Done means identifying and correcting the platform-dependent white-balance or exposure result so both systems produce the same output.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
computer-graphics, desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
42/100

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