It's definitely a regression. I installed linux-image-7.0.0-14-generic, rebooted to that, and both the brightness keys and resume from suspend work fine.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2161394 Title: Brightness hotkeys have no effect in Dell Laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161394/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
