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I have the following config laptop:

System model: HP Pavilion g6 Notebook PC
Processor: AMD A8-4500 APU with Radeon HD Graphics (Quadcore 1.9Ghz)
Memory: 6Gb RAM
Graphics:AMD Radeon HD 7640G+7600M Dual Graphics

I usually get a battery run time of 2.5 hours and more in windows, but when I run Ubuntu, it gives me less than 40 mins and it heats up very badly. Can someone please tell me what to do to get a better battery life and processing power. It would be helpful if some one could give me specific instructions.

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2  
I assume both the gpu are on. You need to install ATI driver. –  Web-E Apr 6 '13 at 8:43
    
how to install it? –  Jibin Apr 6 '13 at 9:30
    
i was reading about installing catalyst in ubuntu but there seems to be some problem with the new kernel –  Jibin Apr 6 '13 at 9:31
    
A quick fix would be to disable the dedicated graphics in the BIOS if possible. At the very least this would let you ensure the problem is the GPU. –  Alex Apr 29 '13 at 3:29
    
askubuntu.com/questions/285434/… –  Qasim Jun 18 '13 at 15:44

3 Answers 3

I use Indicator-cpu , It helped me to some extent... I use the ondemand mode

sudo add-apt-repository ppa:artfwo/ppa
sudo apt-get update
sudo apt-get install indicator-cpufreq
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Try this, I tried this and was successful. I am using a Laptop with similar configurations.

Afterwards a new window appears, select the top radio button; and click on bottom right button and continue it. After finishing the installation, click the bottom button.

  • Goto Catalyst control center
  • Goto Switchable graphics
  • Select Power saving GPU.
  • Click apply
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I also had overheating issues with my HP g6 laptop. I have installed AMD Catalyst & Indicator-cpu.

I also installed TLP power management following

http://itsfoss.com/things-to-do-after-installing-ubuntu-13-10/

sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update 
sudo apt-get install tlp tlp-rdw 
sudo tlp start

Dont know which one did the trick but now my laptop is very much cool

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