Public bug reported:

On the Wayland session using an Nvidia GPU, enabling the Night Light
setting in the Settings app doesn't change the screen colour temperature
to a warmer hue regardless of "Sunset to Sunrise" or "Manual Schedule"
being selected. Switching to the X11 session results in Night Light
working as expecting.

I'm currently using the Nvidia 510.60.02 driver (RTX 2080Ti).

$ lsb_release -rd
Description:    Ubuntu 22.04 LTS
Release:        22.04

$ apt-cache policy gnome-shell
gnome-shell:
  Installed: 42.0-2ubuntu1
  Candidate: 42.0-2ubuntu1
  Version table:
 *** 42.0-2ubuntu1 500
        500 http://gb.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42.0-2ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon May  9 22:01:57 2022
DisplayManager: gdm3
InstallationDate: Installed on 2022-04-29 (10 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
RelatedPackageVersions: mutter-common 42.0-3ubuntu2
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug jammy wayland-session

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1972728

Title:
  Night light not working on Nvidia Wayland

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  On the Wayland session using an Nvidia GPU, enabling the Night Light
  setting in the Settings app doesn't change the screen colour
  temperature to a warmer hue regardless of "Sunset to Sunrise" or
  "Manual Schedule" being selected. Switching to the X11 session results
  in Night Light working as expecting.

  I'm currently using the Nvidia 510.60.02 driver (RTX 2080Ti).

  $ lsb_release -rd
  Description:  Ubuntu 22.04 LTS
  Release:      22.04

  $ apt-cache policy gnome-shell
  gnome-shell:
    Installed: 42.0-2ubuntu1
    Candidate: 42.0-2ubuntu1
    Version table:
   *** 42.0-2ubuntu1 500
          500 http://gb.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: gnome-shell 42.0-2ubuntu1
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon May  9 22:01:57 2022
  DisplayManager: gdm3
  InstallationDate: Installed on 2022-04-29 (10 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 
(20220419)
  RelatedPackageVersions: mutter-common 42.0-3ubuntu2
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

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