Please also run: lspci -k > lspcik.txt journalctl -b0 > journal.txt
and attach the resulting text files. ** Tags added: regression-update -- 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/1880739 Title: Night Light not working in mutter 3.36.2-1ubuntu1~20.04.1 Status in mutter package in Ubuntu: Incomplete Bug description: Till yesterday, it was working fine. But today after reboot, night light failed to start. I tried turning Night Light off/on but nothing seemed to work. Unfortunately, I don't know what the previous version of mutter was installed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1880739/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp