Bug 514868

Summary:	Moving chrome-based windows from laptop to 4K screen changes the app-colors
Product:	[Plasma] kwin	Reporter:	slartibart70
Component:	colour-management	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	fred.dumois, kde, kde, xaver.hugl
Priority:	NOR
Version First Reported In:	6.5.5
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	ok washed-out

Description slartibart70 2026-01-20 16:01:58 UTC

Hi,
i have a Laptop screen and a 4K screen.
if i start google-chrome on the laptop screen, all colors are ok (the app is usable).
Same if i start chrome on 4K screen.

The problem starts, when chrome is started on laptop-screen and then moved to the 4k screen.
All colors are then 'washed out' - the app is still usable though. See attachments

This only happens with google-chrome, chromium and brave. Firefox and other app-windows behave properly when moving.
google-chrome: Version 144.0.7559.59 (Official Build) (64-bit)
brave: Brave 1.86.139 (Official Build) (64-bit), Chromium: 144.0.7559.59

Comment 1 slartibart70 2026-01-20 16:02:14 UTC

Operating System: Fedora Linux 43
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.6-200.fc43.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 PRO 7840U w/ Radeon 780M Graphics
Memory: 64 GiB of RAM (58,5 GiB usable)
Graphics Processor: AMD Radeon 780M Graphics
Manufacturer: LENOVO
Product Name: 21K5000JGE
System Version: ThinkPad P14s Gen 4

Comment 2 slartibart70 2026-01-20 16:03:12 UTC

Created attachment 188717 [details]
ok

Comment 3 slartibart70 2026-01-20 16:03:39 UTC

Created attachment 188718 [details]
washed-out

Comment 4 David Redondo 2026-01-21 13:58:39 UTC

Most likely chrome issue if it doesnt happen to other applications , but lets see what xaver says

Comment 5 slartibart70 2026-01-21 14:05:11 UTC

yes, pretty sure about this:
especially if we take edge into account - this one wasn't yet updated:
Version 143.0.3650.139 (Official build) (64-bit)

Moving over screen-edges does no harm to edge, all colors stay the same

Beginning with version 144 the problems seem to start

Comment 6 Zamundaaa 2026-01-21 14:42:33 UTC

Definitely a Chrome issue, please report it to Chrome/chromium

Comment 7 slartibart70 2026-01-21 16:08:28 UTC

there is already a bug open in chromium tracker:

https://issues.chromium.org/issues/477318785

Workaround for now:
call chrome with '--disable-features=WaylandWpColorManagerV1'

Comment 8 Zamundaaa 2026-01-22 13:04:26 UTC

*** Bug 514928 has been marked as a duplicate of this bug. ***