Bug 389110

Summary:	Being able to change gamma
Product:	[Plasma] kwin	Reporter:	tromzy
Component:	platform-drm	Assignee:	Roman Gilg <subdiff>
Status:	REPORTED ---
Severity:	wishlist	CC:	4wy78uwh, aleixpol, alex765, bugseforuns, cfeck, david.cortes.rivera, nate, postix, subdiff
Priority:	NOR	Flags:	mgraesslin: Wayland+ mgraesslin: X11-
Version:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description tromzy 2018-01-17 14:19:45 UTC

I have a laptop with a pretty bad display; on Plasma X11 I have set the gamma to 0.80 because the whole screen is too washed out if set to 1.00.

I cannot seem to do it on Plasma Wayland. The Kgamma KCM module does nothing. Is there a way to change my gamma settings somewhere ? Setting it in ~.config/kgammarc does nothing either.

I'm on Plasma 5.12 beta on Archlinux with the new Night Color mode ; can I use it to set my gamma settings ?

Comment 1 Roman Gilg 2018-01-17 16:46:58 UTC

Sorry, you can't use the new Night Color mode to set the overall gamma. But I tried to write its backends in a way to later add a second interface / KCM on Wayland for the typical overall gamma, color, brightness adjustment, that Kgamma provides on X.

I have to add this to the list of things, that I want to get into the 5.13 Wayland session...

Comment 2 tromzy 2018-07-03 10:33:21 UTC

So, the gamma settings for Wayland have not been added to Plasma 5.13. Is it planned for 5.14 ?

Comment 3 Roman Gilg 2018-07-04 14:56:56 UTC

It's planned. The problem is that there are some patches hold by missing review already for quite some time, which I need to land first before I can continue working on the gamma stuff.

Comment 4 Alexander Mentyu 2018-10-30 09:55:48 UTC

*** Bug 396967 has been marked as a duplicate of this bug. ***

Comment 5 tromzy 2019-05-23 08:02:02 UTC

Still no gamma settings in Plasma 5.16 beta...

Comment 6 Alex 2021-06-23 07:46:10 UTC

For Wayland, I think this depends on a color management protocol: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/14

Comment 7 Aleix Pol 2022-07-28 14:56:36 UTC

Related MR https://invent.kde.org/plasma/kwin/-/merge_requests/1335