tijmz@Eurydice:~$ xrandr --output LVDS --set BACKLIGHT_CONTROL native
X Error of failed request: BadRROutput (invalid Output parameter)
Major opcode of failed request: 149 (RANDR)
Minor opcode of failed request: 15 (RRGetOutputProperty)
Serial number of failed request: 26
Current serial number in output stream: 26
Does anyone have any suggestions? I'd like to be able to change brightness settings
Read the last page or so of comments, you have to add "nomodeset acpi_backlight=vendor" to the kernel line of GRUB2.