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On my dual boot laptop I noticed that maximum brightness in Ubuntu and Windows 8 is totally different. In Windows 8 the screen is much much brighter at maximum level than it is at Ubuntu maximum level. (I was even asked why my laptop display looks that dim.)

I have a Lenovo ThinkPad E330 Laptop with Intel HD 4000 graphics.

How can I increase the maximum brightness level Ubuntu uses?

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Same Issue. Even though I don't have dual boot, I've always felt my display to be dim. – TheKojuEffect Jan 30 at 17:37
I'll try to take some pictures to show the difference as I think screenshots don't make any sense here. – joschi Jan 30 at 17:40
Added the information. To give a little update to the described problem: I failed in making some photos, that could show the effect so it's just a subjective impression I have when I look at Ubuntu or Windows. I guess brightness is controlled by the kernel and there's no setting maximum brightness higher than maximum brightness because it's determined by the hardware, or am I wrong? – joschi May 14 at 8:44
try this app , may be it will help you omgubuntu.co.uk/2013/04/brightness-control-ubuntu – Qasim May 14 at 8:56
The mentioned app (brightness control indicator) is just using the system values for brightness and doesn't allow you to increase brightness to a higher value than that. – joschi May 14 at 10:13

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