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  1. #1

    Thumbs down How to change color brightness from unix terminal......

    accidentally I raised my brightness to 100% so I couldn't see anything...
    My battery died before I could fix it with tab or something else....
    now I can't fix it....
    because I can't see anything..
    Is there a way to adjust color brightness through my unix terminal.....?

  2. #2
    Linux Engineer GNU-Fan's Avatar
    Join Date
    Mar 2008
    I can set the brightness on my Laptop with the CLI.
    For that I search in /proc/acpi/video...
    until I find a file called "brightness".

    Then I do
    cat brightness
    and it prints the values it accepts.
    10 20 30 40 ... 90 100
    Finally, I echo the brightness level I wish to that file.
    echo "20" > brightness
    Debian GNU/Linux -- You know you want it.

  3. #3
    Administrator jayd512's Avatar
    Join Date
    Feb 2008
    Hello and Welcome!

    Another suggestion would be to use keyboard shortcuts... manage to find your way to the preferences pane.

    Open a Terminal, hit 'Alt+e'... then 'o'
    This should open your profile preferences pane. You'll want to go to the 'Background' tab and set it accordingly.

    New users, read this first.
    New Member FAQ
    Registered Linux User #463940
    I do not respond to private messages asking for Linux help. Please keep it on the public boards.

  4. $spacer_open
  5. #4
    Remember guys I'm talking color brightness and I accidentally changed it from my catalyst control center.....
    I don't think if I change the system's color brightness to 0% my overalll color brightness =%50 cause %100 + %0/2 but I'm not about to risk anything...
    I managed to open it but didn't know how to reach the color part.....

  6. #5
    Linux Engineer GNU-Fan's Avatar
    Join Date
    Mar 2008
    Maybe the aticonfig tool is of help. The Display attribute sections looks promising.
    Debian GNU/Linux -- You know you want it.

  7. #6
    Linux Guru Segfault's Avatar
    Join Date
    Jun 2008
    Do not use ATI myself, but generally all settings in Linux are stored in some config file. User-level config files are stored in home directory. How about efiting that file? If this fails, removing ATI conf file will certainly reset it to defaults.

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