Daniel, anything change if you remove the non-default kernel boot parameter: acpi_osi=Linux
If not, then could you please advise to the WORKAROUNDs noted in https://wiki.ubuntu.com/Kernel/Debugging/Backlight ? Also, in order to upstream this, could you please test the latest mainline kernel (4.4) and advise to the results? ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492137 Title: Brightness keys (fn+f5/f6) not working, UX305FA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1492137/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
