Hello, I can also confirm that on Asus R510L with Nvidia GeForce 840M I can change brightness via "System Settings" -> Brightness and lock" -> "Brightness" slider.
Slider works on Ubuntu 14.04: - kernel 3.13.0-43-generic #72-Ubuntu - nvidia driver nvidia-331-updates 331.113-0ubuntu0.0.4 But I cannot change brightness using the fn keys. Regards, PS. Maybe now it is a prolem reported in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400068 ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1263498 Title: Asus G75VX, can not modify brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-319/+bug/1263498/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs