Hello Anders, or anyone else affected,

Accepted mutter into eoan-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/mutter/3.34.1+git20191107-1ubuntu1~19.10.1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-eoan to verification-done-eoan. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-eoan. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: mutter (Ubuntu Eoan)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-eoan

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mutter in Ubuntu.
https://bugs.launchpad.net/bugs/1847551

Title:
  Mutter 3.34.1 broke Night Light, screen color profiles in Wayland
  sessions

Status in Mutter:
  Fix Released
Status in mutter package in Ubuntu:
  Fix Released
Status in mutter source package in Eoan:
  Fix Committed
Status in mutter source package in Focal:
  Fix Released

Bug description:
  [ Impact ]

  Upgrading Mutter 3.34.0 to 3.34.1 has broken Night Light and screen color 
profile switching.
  The commit at fault is 104bdde746c9ceccd9e9ab09b22ef228b8f7026e “kms: Predict 
state changes when processing update” (which was intended to fix LP bug 
1847044).

  [ Test case ]

  - From gnome-control-center display panel, enable the Night Light
  - Force it on, and ensure that the display color temperature increases

  [ Regression potential ]

  Display gamma value might be incorrect

  Upstream issue: https://gitlab.gnome.org/GNOME/mutter/issues/851

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