I don't know why... The fix worked until yesterday, but the problem has come back!
guillaume@massada:~$ dpkg -l |grep -i mutter ii gir1.2-mutter-5:amd64 3.34.1+git20191107-1ubuntu1~19.10.1 amd64 GObject introspection data for Mutter ii libmutter-5-0:amd64 3.34.1+git20191107-1ubuntu1~19.10.1 amd64 window manager library from the Mutter window manager ii mutter 3.34.1+git20191107-1ubuntu1~19.10.1 amd64 Example window manager using GNOME's window manager library ii mutter-common 3.34.1+git20191107-1ubuntu1~19.10.1 all shared files for the Mutter window manager -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847551 Title: Mutter 3.34.1 broke Night Light, screen color profiles in Wayland sessions To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1847551/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs