Bug 509296 - Krita HDR BUG! in Settings > Display > HDR Setting
Summary: Krita HDR BUG! in Settings > Display > HDR Setting
Status: CONFIRMED
Alias: None
Product: krita
Classification: Applications
Component: HDR (other bugs)
Version First Reported In: 5.2.11
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-09-09 07:30 UTC by Lheureux Steve
Modified: 2025-09-09 08:26 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
bug.jpeg (59.13 KB, image/jpeg)
2025-09-09 07:30 UTC, Lheureux Steve
Details

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Description Lheureux Steve 2025-09-09 07:30:36 UTC
Created attachment 184833 [details]
bug.jpeg

SUMMARY

Krita HDR BUG! in Settings > Display > HDR Setting

Français :
Par défaut je suis en sRGB (8 bit).
Je souhaite utiliser mon écran 4K avec Krita.
J'ai changé de mode dans Settings > Configure Krita > Display > HDR Settings > Preferred Output Format : Rec. 2020 PQ (10 bit). 
Quand je redémarre, le logiciel s'applique avec une interphase sombre par rapport au normal (Voir image bug.jpeg)
J'ai remarqué que si je fais une capture d'écran de krita dans ce mode, elle apparaît en clair donc normalement.
Je sais que mon HDR fonctionne avec le Small color Selector qui donne 80 cd/m² et le mode Display est conforme (Image bug.jpeg)

Merci de votre aide.
---
Anglais :
By default I am in sRGB (8 bit).
I want to use my 4K display with Krita.
I changed the mode in Settings > Configure Krita > Display > HDR Settings > Preferred Output Format: Rec. 2020 PQ (10 bit).
When I restart, the software applies a darker interphase compared to the normal one (see image bug.jpeg).
I noticed that if I take a screenshot of Krita in this mode, it appears bright, so it looks normal.
I know my HDR works with the Small Color Selector, which gives 80 cd/m², and the Display mode is compliant (image bug.jpeg).

Thank you for your help.


STEPS TO REPRODUCE
0. Change Preferred Output Format: sRGB (8 bit).
1.  Settings > Configure Krita > Display > HDR Settings > Preferred Output Format: Rec. 2020 PQ (10 bit).
2. Restart Krita
3. Bug

OBSERVED RESULT
Français:
Image sombre dans l'interface du logiciel non conforme pour son utilisation.
Anglais:
Dark image in the software interface not compliant for its use.

EXPECTED RESULT
Normal

SOFTWARE/OS VERSIONS
Windows:  Windows 11

ADDITIONAL INFORMATION
Nvidia Drivers RTX 4600
Comment 1 Dmitry Kazakov 2025-09-09 08:26:20 UTC
Yeah, the problem is that Krita doesn't implement the Windows API that reports the GUI brightness set in the user settings. At the time the feature was written, the API didn't exist. Now it does and we should use it.