Is there any command in ubuntu/linux which can help me in finding out that which card(intel or ATI card) is managing my backlight?
When I looked at
sys/class/backlight then I am able to find three different folders/symbolic Links. (acpi_video0,acpi_video1,intel_backlight).
I am new to linux world, so if you think question is too basic then I would appreciate if you could refer me some book/webpage/tutorial where I could update myself quickly.