Overheating Laptop

[SYNass IT Ubuntu / Linux]

On Sun, 2008-06-15 at 20:38 -0700, NoOp wrote:
> On 06/15/2008 04:36 PM, SYNass IT Ubuntu / Linux wrote:
> > On Sun, 2008-06-15 at 19:22 +0900, Michael Sotnikov wrote: 
> >> SYNass IT Ubuntu / Linux:
> >> 
> >> 
> >> > sna at WS222:~$ cat /proc/acpi/processor/CPU0/power
> >> > cat: /proc/acpi/processor/CPU0/power: No such file or directory
> >> > sna at WS222:~$
> >> 
> >> looks like you have problems with acpi. Usually it happens with "bad" 
> >> bios. I recommend you to update firmware for your laptop first. (for 
> >> example, my laptop had this kind of problem too, but 2 month ago my 
> >> manufacturer fixed this problem in firmware.)
> >> 
> >> 
> >> To be sure you can check if all acpi-related stuff was loaded properly
> >> 1. check loaded modules: lsmod | grep acpi
> >> if everything ok, there should be acpi_cpufreq, and some other related 
> >> modules (cpufreq_ondemand, freq_table, etc...)
> >> 2. check errors during boot: dmesg | grep ACPI, any errors/warning?
> >> 
> >> Good luck!
> > 
> > 
> > Hi Michael
> > Thanks for your feedback and suggestions !
> > 
> > You are correct with pointing problems to ACPI but 
> > your pointing to "bad" BIOS may not be coorect !? ;-)
> > 
> > ACPI:
> > Well, I had a "sensor setting error" while booting and removed all ACPI
> > stuff !
> > Since then the error message is gone but not the heating problem !!
> > Very soon I have to do a complete new installation from scratch with
> > 8.04 
> > and will see later again with this new setup if the problem persist !?
> > 
> > BIOS:
> > The notebook is maintained very well with IBM / Lenovo's Update
> > Service/s !!
> > BIOS is most accurate I had no heat problems before i installed
> > Ubuntu !!!
> > So, this shouldn't be the case !?
> > 
> > Cheers, svobi
> > 
> > 
> 
> Did you look at top as suggested to see if/what process may be consuming
> your cpu and causing it to overheat? Add the System Monitor to your
> panel to watch for high cpu spikes. When you notice your cpu maxing out
> run top (as suggested) to find out which process(s) are consuming the
> cpu. Laptops don't just heat up when the cpu is setting idle or at
> normal levels - unless of course you have a memory module or other part
> that is causing the overheating.
> 
> Given that it is summertime in the Northern Hemisphere (where you are),
> it's probably a good idea to take your laptop apart and do some spring
> cleaning:
> 
>  I've fixed more than one overheating laptop where the customer though
> it was standard practice to "blow out" the fans & accumulated dust that
> they could see using those cans of pressurized air. Once I open up the
> case, I show them that all they actually did was push the dust bunny's
> further in to the case until it built up dirty hairballs on all the
> internal components. Brushing (I use a woman's makeup brush for the
> standard stuff as the bristles are soft - toothbrush for the caked on
> crap in non-sensitive areas), vacuuming, cleaning the CPU & heat coils,
> plus some new silicon free heat sink compound does the trick every time.
> Don't forget the printer & vacuuming out the CRT (for those of use that
> still use them) as well.
> 
> That's not to say that the OS isn't causing the heating problem, but it
> never hurts to do a good spring cleaning when warm weather sets in.


Hi NoOp
Thanks for your, and Michael's, appreciated feedback, hints and
suggestions !
With my current, the very first, Ubuntu 7.10 setup I am not doing big
experiments anymore !!

I am in midst of preparing for my future / new setup with Ubuntu 8.04
LTS and 
so Backup / Restore procedures are more important and vital to be done
seriously !!! ;-)

Another more important topic is Backup / Restore to the external HDD's, 
one permanent with TCP/IP and the other one as Emergency Unit with USB.

Being confident these two topics I am ready to start my new 8.04 setup
immediately. ;-D

Cheers, svobi