Parameter: video.use_native_backlight=1 - works acpi_video=vendor - not working
** Tags added: regression-release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1354253 Title: [Dell Inspiron 3521] Brightness control does not work on 12.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1354253/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs