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Everytime the screen dims to save power after my laptop has been idle, the fan starts spinning really fast and the cpu temp rises to about 60 deg C. When I move the mouse to undim the screen, the fan returns back to normal.

I'm running Ubuntu 12.04 64-bit on Sony VAIO laptop

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This seems to be a bug. See here how to post a bug report –  Ashu May 26 '12 at 17:17
    
I'm too lazy to report a bug –  functionptr May 26 '12 at 18:15
    
Then im too sorry, no one else can help you. –  Ashu May 26 '12 at 18:16
    
askubuntu.com/questions/285434/… –  Qasim Jun 14 '13 at 14:34

1 Answer 1

up vote 0 down vote accepted

If you don't have the time/skill to debug this, simply turn off screen dimming from "Brightness and Lock" in System Settings:

enter image description here

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thanks, that works for now –  functionptr Jun 26 '12 at 19:06

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