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Always be 100% bright when I'm using battery

It would seem that one would go to the power settings, and adjust the amount of time before the screen becomes dim, but unlike the nice images displayed in Always be 100% bright when I'm using battery, my power settings have no options for the length of time until the screen dims.

Here's what my power settings look like:

power settings

How can I prevent the 10-seconding dimming screen, when on battery power?

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marked as duplicate by Jorge Castro, Marco Ceppi Nov 3 '11 at 13:19

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1 Answer 1

up vote 3 down vote accepted

Go to Screen in options in System Settings and remove the tick mark in Dim Display

enter image description here

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Not working for ubuntu 13.10 –  Jenechka Mar 31 at 18:46

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