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Thread: Screen Brightness

  1. #1
    Join Date
    Jul 2007
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    25

    Screen Brightness

    My screen brightness is set a maximum and i cannot find a way to turn it down. I have tried my key combinations, ddccontrol and the brightness applet. None of these seem to work. I am using a Gateway MX 6959 with an Intel 945 mobile chip set. Thank you for any help.

  2. #2
    Join Date
    Jul 2007
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    25

    Re: Screen Brightness

    bump

  3. #3
    Join Date
    Jul 2007
    Location
    Home
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    109
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Screen Brightness

    I think you can go to System-> Preferences-> Advanced Desktop Effects Settings and do it there.
    Good luck
    Shuttle SA76G2* Athlon II X2 245 * 4Gb PC26400 * 250 Gb HDD * DVD-RW * Ubuntu 12.10

  4. #4
    Join Date
    Jul 2007
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    25

    Re: Screen Brightness

    What do i do in the compiz config

  5. #5
    Join Date
    Aug 2006
    Location
    Somewhere but Not Here
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    965
    Distro
    Ubuntu 8.04 Hardy Heron

    Re: Screen Brightness

    If you have an nVidia card you can use nvidia-settings. If you don't have it installed then

    Code:
    sudo apt-get install nvidia-settings
    After installation type "nvidia-settings" without the quotes, under "X Screen 0 > X Server Color Correction" decrease the Gamma value.
    My blog | Ubuntu Hardware List | Wine Application Database | Jamendo
    (Don't "sudo rm -rf" anything. See this page)
    It's all about fixing BUG #1!

  6. #6
    Join Date
    Jul 2007
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    25

    Re: Screen Brightness

    i have an Intel integrated graphics card

  7. #7
    Join Date
    Aug 2006
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    Ubuntu 8.04 Hardy Heron

    Re: Screen Brightness

    Then from a command line (Applications > Accessories > Terminal) type

    Code:
    xgamma -gamma 0.75
    Just change 0.75 to your liking. You can add this to your launcher: System > Preferences > Sessions and add that line.
    My blog | Ubuntu Hardware List | Wine Application Database | Jamendo
    (Don't "sudo rm -rf" anything. See this page)
    It's all about fixing BUG #1!

  8. #8
    Join Date
    Jul 2007
    Beans
    25

    Re: Screen Brightness

    that only changes the color ratio it does not bring down the brightness of my screen

  9. #9
    Join Date
    Apr 2007
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    /dev/random
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    3,052

    Re: Screen Brightness

    Quote Originally Posted by atomkarinca View Post
    Then from a command line (Applications > Accessories > Terminal) type

    Code:
    xgamma -gamma 0.75
    Just change 0.75 to your liking. You can add this to your launcher: System > Preferences > Sessions and add that line.
    Will this make the screen itself go darker or merely send a darker picture to be drawn? I mean, laptops generally have a hardware brightness setting. I can modify mine through KDE's power manager. But lowering xgamma does not lower this setting; it merely further darkens things while keeping the LCD backlight at the same level.
    ...

  10. #10
    Join Date
    Aug 2006
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    965
    Distro
    Ubuntu 8.04 Hardy Heron

    Re: Screen Brightness

    Quote Originally Posted by Zorael View Post
    Will this make the screen itself go darker or merely send a darker picture to be drawn? I mean, laptops generally have a hardware brightness setting. I can modify mine through KDE's power manager. But lowering xgamma does not lower this setting; it merely further darkens things while keeping the LCD backlight at the same level.
    I'm not using a laptop so I don't know if it works for laptops but that is the only method I know so sorry I couldn't help
    My blog | Ubuntu Hardware List | Wine Application Database | Jamendo
    (Don't "sudo rm -rf" anything. See this page)
    It's all about fixing BUG #1!

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