Successfully solved the problem that the screen brightness cannot be saved in Ubuntu12.04.

My computer is a ATI graphics card, and Ubuntu12.04LTS cannot automatically save the brightness: every time you log on/unlock, it is always the maximum brightness, so I hate it! After studying for one night, I finally got it done with two scripts! Script: bright [plain] #... I have solved the problem that the screen brightness of Ubuntu 12.04 cannot be saved successfully. My computer is a ATI graphics card, and the brightness of Ubuntu 12.04 LTS cannot be automatically saved: the maximum brightness is displayed after each login/unlock, which is annoying! After studying for one night, I finally got it done with two scripts! Script: bright [plain] #! /Bin/bash www.2cto.com # set the display brightness #1. run this command to view the maximum brightness of a display # $ cat/sys/class/backlight/acpi_video0/max_brightness # select a proper value and write it to/sys/class/backlight/acpi_video0/brightness. brightness #2. allow the users group to run "sudo tee" # $ sudo-S sh-c 'echo "% users ALL = (root) NOPASSWD without a password: /usr/bin/tee ">/etc/sudoers. d/bright '# $ sudo chmod 0440/etc/sudoers. d/bright #3. add a user to the users user group # $ sudo adduser your_username users echo 15 | s Udo tee/sys/class/backlight/acpi_video0/brightness script: bright-monitor [plain] #! /Bin/bash www.2cto.com # automatically executed when the user logs in successfully, including returning from the lock status # set this script to auto start: # right-click the gear icon in the upper right corner-> start the application... # Remember to copy the bright and bright-monitor scripts to/usr/bin first. # This allows multiple users to conveniently control the brightness of executor-monitor -- session "type = 'Signal ', interface = 'org. gnome. screenSaver ', member = 'activechanged' "| while read line; do bright done usage reference the notes in the script.
Author Loaden