Screen backlight on Sony Vaio VPCS11E7E with Ubuntu 14.04

Sep 07, 2012

Install the proprietary driver, then open /etc/X11/xorg.conf.d/20-nvidia.conf and add the line 6, as in the example:

Section "Device"
	Identifier "Nvidia Card"
	Driver "nvidia"
	VendorName "NVIDIA Corporation"
	Option "NoLogo" "true"
	Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection

Now log out and log back in. That’s all.