If you pass video.use_native_backlight=1 to the kernel, does brightness control work?
** 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/1341988 Title: [Dell Inspiron 11 - 3147] Brightness control does not work on this system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1341988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs