The value in files - /sys/class/backlight/acpi_video0/brightness - /sys/class/backlight/acpi_video0/actual_brightness
changes (from 0 to 15) when using Fn Keys but not the brightness of screen. The OSD appear only when value is equals to 15. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/762670 Title: Laptop brightness on Dell XPS not controllable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/762670/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
