I'm having the same issue in 18.04 Nvidia driver 390.48. I found this workaround at the moment if anyone is interested https://askubuntu.com/a/1013767
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1720438 Title: brightness control broken nvidia To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-384/+bug/1720438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
