Linux On My Samsung

Found some kind of "Workaround" at least for my Samsung R519 with Intel Graphics.
- To get the background light working edit /etc/default/grub
sudo nano /etc/default/grub and change the line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi ...