Ubuntu – Brightness problem with Xubuntu


I use Xubuntu Linux

Brightness is good without using suspend mode but after using suspend mode I got problem with brightness
It's lower than before !
I need your help

Best Answer

  • http://www.iasptk.com/save-screen-brightness-settings-in-ubuntu-1204-laptop

    Some Ubuntu laptops screen brightness reset to the lowest or highest on every boot and you have to configure the screen birghtness on every login.

    To save the screen brightness settings in Ubuntu laptop.

    Open a terminal window, and execute this command to edit /etc/rc.local:

    sudo nano /etc/rc.local

    Add this before the last line “exit 0″:

    echo 5 > /sys/class/backlight/acpi_video0/brightness

    number 5 is the value of your screen brightness. With this command check the maximum:

    cat /sys/class/backlight/acpi_video0/max_brightness