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Laptop runs perfectly cool on battery but immediately I remove the battery the laptop goes all guns blazing and begins to overheat. How can I instruct the Kernel to maintain the power saving features (used on battery) when using AC?

HP PAVILION DV6700 Intel Core 2 Duo 2.0Ghz 4gb RAM Intel Mobile Chipset 965GM (x3100)

Jupiter is already installed and set to Power savings. Problem is once the kernel detects it running on battery it sort of ignores Jupiter and other power saving features. It seems these fears only kick in when running on battery.

Jupiter does keep power savings on but the laptop starts to overheat ONLY on AC. I just want it to run like how it does when running on battery.

fossfreedom
  • 172,746
Mysterio
  • 12,018
  • hey you posted this 2 times? http://askubuntu.com/questions/69355/how-do-i-prevent-a-hp-pavilion-dv6700-from-overheating does the accepted vote work now? – Rinzwind May 07 '12 at 16:53
  • It did help but since it was a kernel issue, 12.04 fixed it (at least on battery). This question is quite different from the old one as the issue is fixed on battery. Just need same to be replicated on AC – Mysterio May 07 '12 at 17:04
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    You might try enabling laptop-mode (using laptop-mode-tools). You can force it to run even on AC. – Chan-Ho Suh May 09 '12 at 22:06
  • @Chan-HoSuh laptop_mode is installed and already enabled – Mysterio May 11 '12 at 09:24
  • ...you mean enabled on AC? You have to force it to do that. – Chan-Ho Suh May 11 '12 at 09:31
  • how do I force it on AC? I just removed the battery and run the 'sudo laptop_mode' command. I saw the laptop mode enabled output. Does this mean I have forced it on AC? – Mysterio May 11 '12 at 09:36
  • On AC means you have the power cord plugged in. You aren't really supposed to remove the battery except to replace it. – psusi May 13 '12 at 22:03

1 Answers1

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Edit /etc/laptop-mode/laptop-mode.conf and change

ENABLE_LAPTOP_MODE_ON_AC=0

to 

ENABLE_LAPTOP_MODE_ON_AC=1

Now restart laptop-mode with:

sudo /etc/init.d/laptop-mode restart

Check that it's active on AC with for example:

$ sudo laptop_mode start

which gives me:

Laptop mode 
enabled, 
active [unchanged]
Charl Botha
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  • can you also help me out as the temperature of my hard drive surges on AC but runs so cool on battery – Mysterio May 24 '12 at 10:22