Backlight buttons are working fine here (XPS 15 9530, Ubuntu 14.04, kernel 3.13.2-031302-generic).
No acpi keywords added to the grub parameters, and no modification performed in any xorg.conf files. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1185927 Title: 8086:0046 [Dell XPS 15 L501x] Unable to change backlight by default To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1185927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
