Bug 515538

Summary: Occasional Random Color Distortion in All Views since 8.8.0
Product: [Applications] digikam Reporter: Tyson Tan <tysontanx>
Component: ColorManagement-ViewsAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles, metzpinguin
Priority: NOR    
Version First Reported In: 8.8.0   
Target Milestone: ---   
Platform: Manjaro   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 9.0.0
Sentry Crash Report:
Attachments: digiKam 8.8.0 views random color distortion
digiKam 8.8.0 normal color
Colord-KDE configuration
digiKam Color Management configuration (Behavior)
digiKam Color Management configuration (Profiles)
digiKam Color Management configuration (Advanced)

Description Tyson Tan 2026-02-05 07:15:00 UTC
Created attachment 189229 [details]
digiKam 8.8.0 views random color distortion

SUMMARY
Since digiKam 8.8.0, upon starting the app, colors in all views occasionally become extremely distorted. Restarting digiKam usually fixes the problem for the session, but it will happen again, seemingly at random, perhaps 1 in 4 times. 

I did not change anything in digiKam's Color Management settings. 

The system has multiple color profile assigned to the same monitor for different brightness levels. I don't know whether it has something to do with this bug, but the same arrangement never had any issue before 8.8.0.

Gwenview and other apps don't have the same issue.

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.8-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 7840U w/ Radeon 780M Graphics
Memory: 64 GiB of RAM (46.9 GiB usable)
Graphics Processor: AMD Radeon 780M Graphics
Comment 1 Tyson Tan 2026-02-05 07:16:50 UTC
Created attachment 189230 [details]
digiKam 8.8.0 normal color

This is how the previous screenshot supposed to look after restarting digiKam.
Comment 2 Tyson Tan 2026-02-05 07:18:22 UTC
Created attachment 189231 [details]
Colord-KDE configuration
Comment 3 Tyson Tan 2026-02-05 07:21:33 UTC
Created attachment 189232 [details]
digiKam Color Management configuration (Behavior)
Comment 4 Tyson Tan 2026-02-05 07:22:04 UTC
Created attachment 189233 [details]
digiKam Color Management configuration (Profiles)
Comment 5 Tyson Tan 2026-02-05 07:22:26 UTC
Created attachment 189234 [details]
digiKam Color Management configuration (Advanced)
Comment 6 caulier.gilles 2026-02-05 08:31:23 UTC
digiKam has the proper color management engine based on littlecms. Do not mix both (desktop + DK).

As i know Gwenview do not support CM.

Here i use DK under Plasma + Kubuntu 24.04 LTS with problem (multi-screens).
Comment 7 Tyson Tan 2026-02-05 09:14:04 UTC
Gwenview supports color management via lcms2. lcms2 is one of its hard dependencies.
See Gwenview -> Configure Gwenview -> Advance for relevant settings.


(In reply to caulier.gilles from comment #6)
> digiKam has the proper color management engine based on littlecms. Do not
> mix both (desktop + DK).
> 
> As i know Gwenview do not support CM.
> 
> Here i use DK under Plasma + Kubuntu 24.04 LTS with problem (multi-screens).
Comment 8 Maik Qualmann 2026-02-05 09:24:55 UTC
The cause could be Bug 511092.

Maik
Comment 9 caulier.gilles 2026-02-05 09:41:55 UTC
yes, Maik is right. Please test we the daily buil of the 9.0.0 pre-release available here :

https://files.kde.org/digikam/
Comment 10 Tyson Tan 2026-02-07 07:29:24 UTC
I have tested the latest nighty for a while, the issue never happened. Thanks!

*** This bug has been marked as a duplicate of bug 511092 ***
Comment 11 caulier.gilles 2026-02-07 07:32:14 UTC
Related to bug 511092