The brightness of my laptop is reset to Max on every restart. I tried the solution provided at this website but had no luck.

http://ubuntuguide.net/how-to-save-screen-brightness-settings-in-ubuntu-12-04-laptop/

This command

cat /sys/class/backlight/acpi_video0/max_brightness

Returns

cat: /sys/class/backlight/acpi_video0/max_brightness: No such file or directory

Then I go on to find that I don't have any folder named

acpi_video0

but a folder called

intel_backlight

Every time I increase or decrease the brightness using the Brightness Control Keys the "brightness" and the "actual_brightness" values get updated.

Is there any method I could follow to set the brightness to a fixed value on everyboot and vary it as and when I need it using the Brightness Control Keys.