Please install the "evtest" package and run "sudo evtest". Pick your keyboard, press the two brightness keys, and copy&paste the entire output here. Please also annotate the output so that I can see which key press triggered which output.
Finally, please include the output of "cat /sys/class/dmi/id/modalias". Thanks! ** Changed in: systemd (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1500344 Title: Brightness HotKeys not Detected Status in systemd package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1500344/+subscriptions -- 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