Lenovo Y560 overheating with 12.04

[haribrahma]

Hi,

Recently i installed Ubuntu 12.04 as a dual boot along with Windows7. My laptop is a i7 processor(4cores) with 8gb ram and 1GB ATI Radeon 5400 graphics card.

After logging in to ubuntu and working for say 20-30 mins my laptop getting super heated. I just do the basic stuffs like browsing, watching video and working on terminal(extensive ssh to remote servers). I have also worked with 10.10 and 11.04 previously but on that i never faced this over heating problem.

I dont understand what causing this overheating.

[krekerov]

hi.i have same problem. may be you know how downgrade to 11.10

[DrAlbert]

Hi I have the same problem too. i downloaded cpufreqd to change the cpu frequency to 933MHz but it is still hot. i searched many websites but no answer.

[maphilli14]

This app is what I've used in the past, but it doesn't work on 12.04 out of the box due to this bug:

https://bugs.launchpad.net/tp-fan/+bug/480700

I found that I had to maniuplate some BIOS settings to max performance for both cpu and thermal. Then the best I could do on my W500 was level 7, which is only ~3000 rpm. I found that you can use these commands to set the level.

http://www.thinkwiki.org/wiki/How_to_control_fan_speed

However, level 7 wasn't enough for dual-monitor using the discrete graphics, ATI in my case with open src drivers.

I was able to use this command to get it to 4900rpm

echo level full-speed | superuser tee /proc/acpi/ibm/fan

where superuser is sudo of course

This however was temporary and I had to create a loop in bash to run it every 30 seconds or so.

#!/bin/bash

while :
do

	echo level full-speed | superuser tee /proc/acpi/ibm/fan
	#echo "Press [CTRL+C] to stop.."
	sleep 30
done

HTH,

Mike