If you are facing brightness adjustment problem on you laptop like you can not adjust your laptop brightness using fn keys then try following one...
It will work on all ubuntu versions uptill now and you may try it on other gnu/linux oprating sytems that is derived from ubuntu or debian like mint,zorin,kubuntu,etc...
This problem occurres mainly in acer and gateway laptops but you may try on your laptop if have this type of problem.
Steps:
1. In a terminal window, ype in:
Code:
gedit ./backlight_d.sh
2. Copy and paste the following into the mousepad application that just opened:
Quote:
| #!/bin/bash old_b=9; declare -i curr_b=240; declare -i target_b=240; while : ; do b=`cat /sys/class/backlight/acpi_video0/brightness`; delay="0.5" if [ $old_b != $b ]; then old_b=$b let "target_b=$b * 20 + 12" #printf "Target: %10d\n" $target_b fi hex_b="."; if [ "$curr_b" -lt "$target_b" ] ; then let "curr_b=$curr_b + 2" if [ "$curr_b" -gt "$target_b" ] ; then let "curr_b=$target_b" fi hex_b="-" elif [ "$curr_b" -gt "$target_b" ] ; then let "curr_b=$curr_b - 2" if [ "$curr_b" -lt "$target_b" ] ; then let "curr_b=$target_b" fi hex_b="-" fi if [ $hex_b != "." ] ; then hex_b=`printf "%02X" $curr_b` delay="0.005" setpci -s 00:02.0 F4.B=$hex_b fi sleep $delay done |
Code:
File->Save(save it through closing it)
Code:
sudo cp ./backlight_d.sh /etc/ && sudo chmod +x /etc/backlight_d.sh
5. Enter the following into the terminal window:
Code:
sudo mousepad /etc/rc.local
Code:
nohup /etc/backlight_d.sh &
Quote:
| nohup /etc/backlight_d.sh & exit 0 |
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