The brightness hotkey will change the "brightness" level from /sys/class/backlight/nv_backlight/, but it seems that it's actually using the Intel one.
Modify the "brightness" file in /sys/class/backlight/intel_backlight/ can change the screen brightness. Tested with 4.11rc7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1683445 Title: E6430 brightness control not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1683445/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
