Howdy AMLJ,
Post some actual info please...
And, you have not answered the question asked in the 2nd post !
Which means people are forced to draw on inference ... which isn't the best way to go about a problem solve .
So ...
fancontrol is part of the lm-sensors package ...
What kind of computer do you have, and is it a laptop.
Do you have the lm-sensors package installed and configured.
If it is installed and configured running the cmd,
]$ sensors
should give some usefull feed back on the tmp/fan state of your system.
Sometimes (often) the lm-sensors config will need some tweaking !
What do your logs have to say.
Are there any entries there, such as in my /var/log/boot log
Thu Jun 10 18:38:28 2010: Starting Common Unix Printing System: cupsddone.
Thu Jun 10 18:38:28 2010: Turning on process accounting, file set to '/var/log/account/pacct'.
Thu Jun 10 18:38:28 2010: done.
Thu Jun 10 18:38:28 2010: Starting fan speed regulator: fancontrol.
Thu Jun 10 18:38:29 2010: .
Thu Jun 10 18:38:29 2010: Starting file alteration monitor: FAM.
You could also try looking in syslog and kernel.log
]# grep 'fan' boot
]# grep 'fan' syslog
etc
Some other dumps from my system ...
[root:19:58]# pwmconfig
File /var/run/fancontrol.pid exists. This typically means that the
fancontrol deamon is running. You should stop it before running pwmconfig.
If you are certain that fancontrol is not running, then you can delete
/var/run/fancontrol.pid manually.
[root:19:58]# sensors-detect
# sensors-detect revision 5249 (2008-05-11 22:56:25 +0200)
This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.
We can start with probing for (PCI) I2C or SMBus adapters.
Do you want to probe now? (YES/no):
[root:19:59]#
Note:
"If you are certain that fancontrol is not running, then you can delete
/var/run/fancontrol.pid manually."
Have you had any events, such as crashes that may have led to the pid file hanging over from a previous session. Does a pid file exist.
What permissions are there set on /etc/fancontrol ...
When i do a,
[root:20:06]# /etc/init.d/fancontrol status
I get,
[root:20:06]# /etc/init.d/fancontrol status
Usage: /etc/init.d/fancontrol {start|stop|restart|force-reload}.
Which is quite different to what you get ?!, why is that ?
If you can post the relavent info mentioned above, then it might be possible to suggest something.
Also ... does the side of the box feel overly warm ?. That might sound a bit lame, but as a kind of straw grab ... having lm-sensors set up though would be much better.
Hello! Since when I installed Squeeze I'm having this problem. You know how disturbing it is.
I don't know if this is related in any way, but when I play music or watch video and do other things at the same time it looks like this happens more.
If temp was an issue, i would expect apps to be doing strange things , like exiting unexpectedly. Rather than the computer deciding to shut down.
And it would seem to be happening while under load.
Do you have enough power.
What's your PSU like ... again, this relates to the type of computer (laptop etc).
As you also say 'sinse installing squeeze' it also suggests it might be an incomplete package install.
Hope that all makes some sense

P.S:
Looks like aspnair just posted something that mentions lm-sensors as well,
But i'll post this anyway.
jm