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Old 04-06-2010, 01:13 AM   #1
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Ubuntu constantly overheat

Please help me.I have installed Ubuntu from scratch several times since this problem started in Ubuntu 9*. It happens over and over again, and nothing seems to help.
My grasphic card is Nvidia 8500 GT. No matter what I try, to use no hardware drivers or use the recommended driver for Ubuntu my system shuts down without warning. I have used Ubuntu since 2004 and this is the worst bug I have ever experienced!
Is there a way to get rid of this thermal awareness program? Everything functioned fine until this stupid heat problem occurred. I want to turn it off but not to leave Ubuntu.
Lasdt night I was busy installing WinXP when my computer suddenly turned off, and Ubuntu could not be started again. Only show a screen with black and white parts and no desktop. Thats why I had to install Ubuntu again, and it turned off today while I use Firefox. Its the worst bug I have ever experienced.
Old 04-06-2010, 01:48 AM   #2
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Hi -

You're not alone. But perhaps some of the suggestions in some of these links might help:

For starters, definitely make sure your fan is OK, and definitely consider "blowing out" your PC:
As others have mentioned, I would first make sure overheating issues aren't hardware related (i.e. - Clean out that dang laptop!) Using a can of compressed air paired with a strong vacuum at the other end of your CPU vents should do wonders. If you are brave enough, there are Service Manuals available online for different laptop makes/models, a Google search should tell you if there's one available for you. When I first encountered overheating with my laptop I took it apart and cleaned all the dust, lint, etc. that had accumulated inside the fan housing and *especially* inside the CPU heatsink itself.
Look here for some great ideas:

This link is instructive, too:
I have a T500 Thinkpad with an ATI Radeon PCIE card. I have been running Ubuntu on it for 18 months. I recently upgraded to Jaunty and have been experiencing very high temperatures near the center of the system.

The contents of /proc/acpi/ibm/thermal would show something like
temperatures: 42 44 36 70 33 -128 30 -128 41 47 42 -128 -128 -128 -128 -128
with the fourth value being very high.

I found that manually setting the fan to 'disengaged' kept the system relatively cool...
temperatures: 42 44 36 51 33 -128 30 -128 41 47 42 -128 -128 -128 -128 -128
Still not perfect. With more experimentation I found the following solution which
required both items to work very effectively:

In the bios on the machine there are settings for thermal managment. I set them to Balanced instead of Maximum Performance. I also installed the FGLRX driver.

Now the machine stays cool under all circumstances with readings like this.
temperatures: 41 44 36 44 33 -128 30 -128 41 47 41 -128 -128 -128 -128 -128
and does so without excessive fan cycling.

I believe that there is something about the free ati radeon driver that causes the video
chip to overheat.
Old 04-06-2010, 01:54 AM   #3
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I don't know if you can call this a bug, there is clearly something wrong with your system if it shuts down due to overheating. Have you checked the fan on your processor is working correctly? That it is free from an excessive dust build up? Replaced the thermal paste? You could have faulty ram. The fact that this behaviour happened during an install of another op/sys means it's probably a hardware issue.

Edit: There is an issue with using a certain version of Nvidia driver, not sure if it applies to you but the sypmtoms was overheating. See here:

Last edited by {BBI}Nexus{BBI}; 04-06-2010 at 02:02 AM.
Old 04-08-2010, 10:08 AM   #4
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It overheated because dust

Today I have cleaned my computer, and it has been working hard for hours without any problems. So it seems what I thought was bas drivers from Ubuntu was only a dirty computer,


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