[SOLVED] need to change backlight on startup

jejuba · 11-09-2013, 03:40 PM

Dear all,

I would like to change backlight on startup. I know the command is

Code:

echo -n 70 > /sys/class/backlight/acpi_video0/brightness

so I wrote that to a script, and added it to the autostart application but it doesn't work. The script doesn't work when I run it anyway. I guess the reason is that I am not root and the command needs to be run as root. So here is my question: how do i get this very simple command work? i do not use 'sudo' and would rather not.

Any help would be greatly appreciated.

druuna · 11-11-2013, 03:10 AM

You could execute that command when your computer starts.

You do not mention which Linux distro you are using but a lot of them have a file called /etc/rc.local. This script file is run once, after run-level specific commands and before all other scripts have run but before the login prompt appears.

Try adding this to that file (before the exit 0):

Code:

echo -n 70 > /sys/class/backlight/acpi_video0/brightness &

jejuba · 11-13-2013, 05:50 PM

Dear Druuna,

it works great, thank you.