About Screen brightness

Hello,
I have HP probook 4540s with intel hd graphics and amd radeon hd graphics.
I installed linux operating system Ubuntu 14.04LTS in my laptop. I got problem in brightness control.
The brightness of screen is not decreasing ,its so bright.
Also my laptop get heated ,why?
Please reply with solution quickly.
Thank you!!

Hi vishwa1937,
Your ProBook 4540s is a commercial product and to get your issue more exposure I would suggest posting in the commercial forums. Here is a link to the Commercial Notebook forum.
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

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    Solved!
    Go to Solution.

    Yea, the dynamic brightness control changes the brightness level depending on those checkable conditions, this is not actually changing the brightness level (the number stays the same), it just fluctuates by flickering steps.
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    [EDIT] Yes, I meant 'On Battery', sorry about that. I changed it above for anyone else finding their way to this problem. Thanks.

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