Bug 464053

Summary: Color profile applied to incorrect screen on multiscreen setup after screen configuration change
Product: [Applications] systemsettings Reporter: Jens <jens-bugs.kde.org>
Component: kcm_colordAssignee: Daniel Nicoletti <dantti12>
Status: RESOLVED UNMAINTAINED    
Severity: normal CC: dantti12, nicolas.fella, noahadvs, tantalising007, uhhadd
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Jens 2023-01-09 15:35:53 UTC 
SUMMARY: see $SUBJECT

STEPS TO REPRODUCE
1. Boot KDE Neon (22.04, all updates applied) on a multiscreen setup. In my case, Samsung 22" (1) and Dell 27" (2)
2. Apply a color profile (.icc) to the first (primary) screen (in my case, Samsung 22"). This works fine and is reapplied when rebooting.
3. Disconnect the second screen. The color profile on the first still works fine.
4. Reconnect the second screen.

OBSERVED RESULT
The color profile of the primary screen is now applied to the secondary (reconnected) screen.
This persists even when again disconnecting and reconnecting the second screen, and also across reboots.
It also persists when changing the color profile - apparently the KDE Color Profile settings module "thinks" my Dell 27" is actually the Samsung 22".
Changing the 27" color profile is *also* applied to the 27" screen, btw. So they are not swapped.

EXPECTED RESULT
Color profile should stay with the screen it was applied to regardless of monitor configuration change.

SOFTWARE/OS VERSIONS: KDE Plasma 5.26 on KDE Neon, 
ADDITIONAL INFORMATION: I attached my color profile, just in case. This was generated using agryll using a Spyder5 colorimeter.
Comment 1 David Edmundson 2025-05-26 12:41:17 UTC 
kcolord is now unmaintained, color management has moved to kwin as part of wayland.