When i installed Ubuntu 13.10 , i found that screen bightness couldn’t be saved in every time i open my laptop.
I searched on the web one more time and i found more answers .. this is the simplest way:
- Check for maximum level of your laptop backlight (0 – 9)
Open your terminal as a root and type:
It will output 9 or 8.
- Open /etc/rc.local which executes the end of each multiuser runlevel
Type on terminal:
sudo gedit /etc/rc.local
Then add this line above ‘exit 0 ‘ line:
echo 0 > /sys/class/backlight/acpi_video0/brightness
The 0 value can be changed as the level you want.
- Restart your Ubuntu