Now I can change it by Fn
+ arrow right
but now I need to do it via my shell script
Ubuntu – How to change brightness through terminal
11.04brightness
11.04brightness
Now I can change it by Fn
+ arrow right
but now I need to do it via my shell script
Best Answer
adding to what Michał Šrajer says in some cases the brightness may be controlled from
/sys/class/backlight/acpi_video0/brightness
as is the case with my dell vostro 3400 and my the brightness range is 0-15. You may have to look for other folder in/sys/class
if the same path as mine doesnot exit.