You have been subscribed to a public bug: The brightness can be changed through commands, however the brightness keys fn+f6 (brighter) and fn+f5 (dimmer) are not detected by acpi_listen, thus the hotkey functions do not activate.
Ubuntu 15.04, 3.19.0-28-generic ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- Brightness HotKeys not Detected https://bugs.launchpad.net/bugs/1500344 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp