Hello friends i have laptop of sony vaio. I have installed Ubuntu 11.10 in my laptop. As all of you have faced the problem in decreasing or increasing the brightness in Ubuntu 11.10 because i have faced this problem , as you all of you know that "fn + f5" and "fn + f6" does not working or not showing any changes in screen brightness. I have searched in Google go but did not get the right solutions. At final i have solved my problem so i think that it will help full to some persons so i have posted below that how i have solved this problem
Solutions :-
1. open terminal
2. just type the following command given below and press enter.
echo 50 | sudo tee /sys/class/backlight/intel_backlight/brightness
3. Now enter the super user password.
4. Now you will see the decrease in brightness if you will change just 50 to 60 or any numerical value then increase in numeric value will increase the brightness and vice versa.
I think it will help you very much.
Now if you have any problem then just comment.
Solutions :-
1. open terminal
2. just type the following command given below and press enter.
echo 50 | sudo tee /sys/class/backlight/intel_backlight/brightness
3. Now enter the super user password.
4. Now you will see the decrease in brightness if you will change just 50 to 60 or any numerical value then increase in numeric value will increase the brightness and vice versa.
I think it will help you very much.
Now if you have any problem then just comment.
