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I am using Ubuntu 14.04LTS on Lenovo G580. The Function key is working fine for brightness change, but I want to make the change smoother, i.e. reduce the step change in brightness per key press. Any Ideas on how to do that?

Ujjwal Kumar
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1 Answers1

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you can also increase and decrease the brightness from present value to specified level.as you mentioned if you want to increase to 10% from current value of brightness then you can give this

xbacklight -inc 10

and to decrease 10% you can give this

xbacklight -dec 10

Source

Maybe you want to change the 10 to 5 or even 3, to have a slower transition, so use

xbacklight -inc 5

and

xbacklight -dec 5

To reassign the keyboard short cuts - using the GUI - follow this:

Open system settings, and click keyboard.

enter image description here

Click Shortcuts, then custom shortcuts.

enter image description here

Click [+] then type the following (ignore what I put in the image):

Brightness Up

 xbacklight -inc 5

Click disabled and press your chosen shortcut key:

And repeat for the brightness down.

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Tim
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  • Thanks a lot man! It worked like a charm. Although "xbacklight" is not installed by default so one has to install it first. – Ujjwal Kumar Jun 12 '15 at 03:04