I have the backlight control keys working on 3.13.0-17 with the addition of the following to my /etc/default/grub file:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor" The backlight is controlled through the intel driver rather because the internal display is connected to that card rather than the nvidia. $uname -a Linux lcb-zbook-15 3.13.0-17-generic #37-Ubuntu SMP Mon Mar 10 21:44:01 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1257766 Title: [HP ZBook 15] can not reduce brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1257766/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
