Ubuntu – Note book is getting very hot when using Ubuntu 12.04


I have bought a Toshiba satellite Pro L850 note book. It already has preinstalled windows 7 professional. I have installed Ubuntu 12.04 and now my note book have two Operating systems. The problem is, my note book is getting very hot only if i load Ubuntu. It is working fine with windows 7. Can any one tell why this is happening? And can anyone suggest a solution for this problem? I really want use Ubuntu in my laptop.

Thanks in advance.

Best Answer

I don't know the specs of your laptop, but i will offer some information from my own Toshiba and Linux experiments:

I have a Toshiba Satellite L300D laptop that would over heat while running Ubuntu. What worked for me was this:

Open a terminal and run:

$gksu gedit /etc/default/grub

find the line:


and add the command "acpi_osi=" after "quiet splash"

so the line will end up looking like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="

after words, in the terminal again:

$sudo update-grub

and restart your computer.

This left the brightness keys of my laptop not working, but the fan now comes on and off as it should and the computer doesn't overheat.

This may or may not be a solution that works with your computer, but it may be worth a try if you are still struggling.

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