This bug was fixed in the package unity-settings-daemon - 15.04.1+18.04.20180413-0ubuntu2
--------------- unity-settings-daemon (15.04.1+18.04.20180413-0ubuntu2) cosmic; urgency=medium [ Kai-Heng Feng ] * power: Choose correct backlight device on laptops with hybrid graphics (LP: #1683445) Backported from gnome-settings-daemon commit ed7c2744 -- Sebastien Bacher <seb...@ubuntu.com> Tue, 03 Jul 2018 11:27:01 +0200 ** Changed in: unity-settings-daemon (Ubuntu) Status: Triaged => Fix Released -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1683445 Title: E6430 brightness control not working To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-settings-daemon/+bug/1683445/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs