Ubuntu 12.04 brightness problem resolved

Posted: May 9, 2012 in Technology
Tags: ,

every time I start up my ubuntu 12.04, my laptop’s brightness always get reset to the maximum. I always keep the brightness to as minimum as possible. After some googling, i found this command line tool xbacklight which is pretty useful. command “xbacklight -set 50” reduce your brightness by 50%. just add this to your .bashrc file and u r good to go. To install xbacklight, do
sudo apt-get install xbacklight
[update]
sometimes adding this to .bashrc will not work. Try to add this command to “startup applications”.

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Comments
  1. Arun says:

    Tried it before when I faced brightness problem. Does not work on all models. Mention your laptop model.

  2. Kapil Jain says:

    mine is compaq presario series and it works fine with my laptop

  3. Krishna Raj K says:

    thanks…
    it works…..

  4. Andrei Nica says:

    this was actually the only solution that worked on a HP Laptop Probook 4520s, which reset brightness after restart to highest level. I included the command “xbacklight -set 20” in Startup Applications as in .bashrc somehow it didn’t change anything.

  5. Arun says:

    command in .bashrc won’t execute till you fire bash terminal once after login. so it’s always better to add in startup OR add all your necessary commands in a script file, put it in /usr/local/bin/, make it executable and add a startup item to run the script. next time you wanna add something, just add it in the script file.

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