Bug 2439758 - rawtherapee doesn't support newer Panasonic Lumix raw format because the fedora package of libraw is using an old/obsolete version of the source
Summary: rawtherapee doesn't support newer Panasonic Lumix raw format because the fedo...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: LibRaw
Version: 43
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Gwyn Ciesla
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-13 20:18 UTC by Paul Mansfield
Modified: 2026-03-12 00:16 UTC (History)
7 users (show)

Fixed In Version: LibRaw-0.22.0-1.fc45 LibRaw-0.22.0-1.fc44
Clone Of:
Environment:
Last Closed: 2026-02-18 18:34:07 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)
RT app when lumix rw2 loaded (1.44 MB, image/png)
2026-02-13 20:19 UTC, Paul Mansfield
no flags Details
part 1 of 2 of an rw2 file split (17.39 MB, application/octet-stream)
2026-02-14 00:03 UTC, Paul Mansfield
no flags Details
part 2 of 2 of an rw2 file split (17.39 MB, application/octet-stream)
2026-02-14 00:05 UTC, Paul Mansfield
no flags Details

Description Paul Mansfield 2026-02-13 20:18:28 UTC
when I load an image made with Lumix G9m1 it works, but G9m2 images look like pink mush.

I do not know if this is a problem with RT or with LibRa, I suspect that it's the use of a stable and bad libraw:

https://github.com/LibRaw/LibRaw/issues/672





Reproducible: Always

Steps to Reproduce:
1.start program
2.load image from local file storage
3.see screen of pink mush


Expected Results:
should see my beautiful photo

Comment 1 Paul Mansfield 2026-02-13 20:19:48 UTC
Created attachment 2129398 [details]
RT app when lumix rw2 loaded

Comment 2 Paul Mansfield 2026-02-13 20:27:12 UTC
I can't attach a raw image, the smallest file I have is over 31MB but the limit here is 19-ish

Comment 3 Paul Mansfield 2026-02-14 00:03:24 UTC
Created attachment 2129402 [details]
part 1 of 2 of an rw2 file split

Comment 4 Paul Mansfield 2026-02-14 00:05:34 UTC
Created attachment 2129403 [details]
part 2 of 2 of an rw2 file split

cat the parts together

cat PGII2333.rw2.part1 PGII2333.rw2.part2 > PGII2333.rw2

for the record, I grant rawtherapee and libraw developers permission to use my photo for any purpose in developing and testing their software.

Comment 5 Mattia Verga 2026-02-14 07:23:31 UTC
Rawtherapee 5.12 should support G9m2 images and in F43 was built with libraw 0.21.4.
See https://github.com/RawTherapee/RawTherapee/issues/7439

You should report this problem upstream, I don't think it's a packaging problem.

Comment 6 Paul Mansfield 2026-02-14 22:39:29 UTC
I've read a little more. it seems that the release version of libraw is badly out of date and is missing many new features merged to it, such as the newer Lumix file format

so I agree that Rawtherapee isn't at fault, neither your package, nor the software upstream.

What I think I need is to have a build of git latest libraw library which RT can run against. How do I go about requesting that?

thanks for your time

Comment 7 Paul Mansfield 2026-02-14 22:40:46 UTC
I've changed this ticket to be about libraw, if that's ok?

Comment 8 Paul Mansfield 2026-02-16 14:58:33 UTC
https://github.com/LibRaw/LibRaw/issues/672

Comment 9 Miloš Komarčević 2026-02-16 15:43:57 UTC
x-ref bug 2428911

Comment 10 Mattia Verga 2026-02-16 17:14:33 UTC
Note that it might be hard to update libraw 0.22 other than in F45... it depends on how breaking the update from 0.21.5 is.

Comment 11 Miloš Komarčević 2026-02-16 17:29:21 UTC
> it depends on how breaking the update from 0.21.5 is

It's not fortunately, but there are still probably a few rebuilds to do... I hope a freeze exception could be doable for F44 if the maintainers are up for it, as the list of newly supported cameras is not small.

Comment 12 Gwyn Ciesla 2026-02-16 17:36:21 UTC
I've been looking at it for a couple weeks. I'll get the build and side tag going to start the 1-week clock for f45.

Comment 13 Miloš Komarčević 2026-02-16 17:41:56 UTC
> I'll get the build and side tag going to start the 1-week clock for f45.

Great, thanks. If it helps, I've done the bump in MSYS2 [1] following the Arch one [2]. Only ImageMagick required some attention (fixed upstream only in latest 7.1.2.13).

[1] https://github.com/msys2/MINGW-packages/pull/25268/changes
[2] https://archlinux.org/todo/libraw-022/

Comment 14 Paul Mansfield 2026-02-17 14:49:02 UTC
> I hope a freeze exception could be doable for F44

I really hope this will be possible, because an upgrade to the version libraw would improve more than just the usage of RawTherapee, there are other image processing tools which must use it, and it could be a deal breaker for some people.

I appreciate everybody's a volunteer, so thanks for all your efforts.

Comment 15 Gwyn Ciesla 2026-02-17 15:55:06 UTC
The side tag is coming to rawhide tomorrow. I've just submitted a freeze exception proposal for F44.

Comment 16 Paul Mansfield 2026-02-17 19:28:23 UTC
that's excellent news @gwync thanks!

Comment 17 Fedora Update System 2026-02-18 15:07:24 UTC
FEDORA-2026-3d97f71b0c (deepin-image-viewer-5.8.2-20.fc45, dtk6gui-6.7.32-3.fc45, and 27 more) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3d97f71b0c

Comment 18 Fedora Update System 2026-02-18 18:34:07 UTC
FEDORA-2026-3d97f71b0c (deepin-image-viewer-5.8.2-20.fc45, dtk6gui-6.7.32-3.fc45, and 27 more) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 19 Gwyn Ciesla 2026-02-26 21:45:50 UTC
Checked on freeze exception status.

Comment 20 Fedora Update System 2026-03-03 21:28:33 UTC
FEDORA-2026-a6a2ed1eb5 (deepin-image-viewer-5.8.2-20.fc44, dtk6gui-6.7.32-3.fc44, and 27 more) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a6a2ed1eb5

Comment 21 Fedora Update System 2026-03-04 01:08:42 UTC
FEDORA-2026-a6a2ed1eb5 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-a6a2ed1eb5`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a6a2ed1eb5

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 22 Fedora Update System 2026-03-12 00:16:03 UTC
FEDORA-2026-a6a2ed1eb5 (deepin-image-viewer-5.8.2-20.fc44, dtk6gui-6.7.32-3.fc44, and 27 more) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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