Brightness boots up full brightness every new boot up..

[Linda_Valdeen]

Running Ubuntu-12.4 ("UE 3.4") in a Toshiba Satelite notebook (160 gig hd, 2 gig ram)..
After every boot up I set brightness to lowest setting..
Every boot up the brightness is at brightest setting..
Is there a tweak to lock the brightness setting at minimum?..

[varunendra]

Is there a tweak to lock the brightness setting at minimum?..

I have added this line in my "/etc/rc.local" file -

echo 0 > /sys/class/backlight/acpi_video0/brightness

Your default video device may be different than "acpi_video0" and its pertaining setting value (0) maybe different too. Please check it yourself with -

ls /sys/class/backlight

.. and the pertaining value in the "brightness" file in the found video device(s).

Make sure to add the command above the last line (exit 0) in the /etc/rc.local file, as "exit 0" must be its last line.