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nLinked
Asked: 2011-05-26 09:57:38 +0800 CST

Is there an alternative to Redshift and F.lux which only dims the screen?

  • 772

I want one where it reduces the screen's brightness, either by time or on demand (I don't mind). I have onboard Intel graphics. I don't want it to be like Redshift where it changes the screen's hue.

11.04

4 Answers

  1. Best Answer

    On a computer with Ubuntu 11.04 and onboard Intel graphics this works for me:

    $ xrandr | grep connected | cut -f1 -d" "
VGA1

    Use the output name found (in this case "VGA1") and adjust the brightness

    $ xrandr --output VGA1 --brightness 0.7

    Note, that the xrandr man page has this to say about the --brightness flag:

    However, this is a software only modification, if your hardware has support to actually change the brightness, you will probably prefer to use xbacklight.

    • 14

  2. The development build of Redshift will alter brightness. I am not sure if it will alter based on the time but you could ask the developer to add this feature.

    http://bazaar.launchpad.net/~jonls/redshift/trunk/revision/153

    Here are the basic steps required and the INSTALL file has more detailed instructions about building from source.

    1. You will need to install the following packages:

      sudo apt-get install build-essential libtool automake autopoint

    2. From the Terminal get a copy of the latest development source code:

      bzr branch lp:redshift
cd redshift

    3. Create the configure file, compile and build:

      ./bootstrap  
./configure 
make

    4. Test the created application works as exepected:

      ./src/redshift -b 0.1

    5. Install the application:

      sudo make install
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  3. This maybe https://launchpad.net/brightness ? It uses the webcam as a sensor to adjust screen's brightness. (It uses OpenCV and you have to build it by your own)

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  4. I use Cairo-Dock with the Screen Luminosity plugin. Its a very easy access to brightness control.

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