Confirming this issue on Kubuntu 15.04 on Asus UX305. "acpi_osi" hack doesn't fix the problem. I am able to change brightness using xbacklight.
$ sudo dmidecode -s bios-version UX305FA.203 $ uname -a Linux asus 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1348890 Title: Asus UX32LN: Brightness keys Fn+F5 and Fn+F6 don't generate evdev event Status in linux package in Ubuntu: Confirmed Bug description: Hello Community, It seems brightness keys don't work with latest Ubuntu 14.04 LTS for laptop Asus Zenbook UX32LN. sudo dmidecode -s bios-version UX32LN.203 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1348890/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
