Review your favorite Linux distribution.
Go Back > Forums > Linux Forums > Linux - General
User Name
Linux - General This Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.


  Search this Thread
Old 10-16-2007, 02:51 PM   #1
Registered: Oct 2005
Distribution: mandriva
Posts: 106

Rep: Reputation: 15
why message: Unable to turn cooling device "off"?

I'm running Debian Etch on an eMachines 1.8GHz. About every 10 minutes, I get this message:

  ACPI: Unable to turn cooling device [c1474784] 'off'
ACPI: Transitioning device [FAN1] to D3
ACPI: Transitioning device [FAN1] to D3
These messages cause a momentary lockup of my system and make my log files huge. After some searching, I think I found the problem: the thermal cutoffs for the cooling fans are in the -250 C range. I found this by running this command:
server:/var/log# cat /proc/acpi/thermal_zone/THRM/trip_points
critical (S5):           -264 C
passive:                 -273 C: tc1=0 tc2=0 tsp=600 devices=0xc14742c0
active[0]:               -267 C: devices=0xc1474784
I even found a way to set these trip points as follows, and this appears to fix the problem:

server:/var/log# echo -n "65:60:50:55:50:45" > /proc/acpi/thermal_zone/THRM/trip_points
server:/var/log# cat /proc/acpi/thermal_zone/THRM/trip_points
critical (S5):           65 C
passive:                 50 C: tc1=0 tc2=0 tsp=600 devices=0xc14742c0
active[0]:               55 C: devices=0xc1474784
but, the old trip points of -264 C are restored upon a reboot. So, I guess I need to know how to fix it so the ideal trip points are maintained upon reboot, or another solution if anyone knows of one. Thanks!
Old 10-16-2007, 05:55 PM   #2
LQ 5k Club
Registered: May 2003
Location: London, UK
Distribution: Debian "Jessie"
Posts: 6,087

Rep: Reputation: 407Reputation: 407Reputation: 407Reputation: 407Reputation: 407
Well, some people thrive on over-clocking things - buy cheap, then push it further, no harm in that. But they then have to install other things to make sure that they are not overheating the hardware... Which may lead to inappropriate "warnings" when things are not configured just exactly-perfectly. I quit mandriva / suse because of this, among other things.

Frankly, I can no longer be bothered with this level of hardware-monitoring: I prefer to let the kernel use the hardware as is it is supposed to be used, otherwise I end up in a configuration nightmare because the OS assumes that I am over clocking my hardware, and sends me (inappropriate) messages about temperatures ( Because the sensor daemons, need configuring with adjustments for particular sensors according to your motherboard's hardware [Voltage, clock rate, offsets, multiplication factors etc] )

That said, if you have a command string that sorts things out for you after every boot then you can make it run automatically after the boot process has completed by appending that command to the file /etc/rc.local

Try it.

Otherwise, you could do as I have done - disabled the monitoring

If my PC has meltdown one day (it will do), I have backups.
Old 10-17-2007, 08:53 AM   #3
Registered: Oct 2005
Distribution: mandriva
Posts: 106

Original Poster
Rep: Reputation: 15
Hi tredegar,

I'm not sure about overclocking, this system isn't overclocked, so I don't really think that is the problem. I'm not excited about disabling the monitoring and would only considering it as a last resort.

Anyway - I did as you advised and it appears to have worked. No messages in the last 12 hrs or so. Actually, I knew it would, I just needed a way to start it at boot. Thanks for your help.



Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Unable to turn cooling device on?, FC6 Cereal765 Linux - Kernel 9 12-04-2008 06:47 PM
Getting a "No space left on device" message on a non-full partition... sugar2 Linux - Hardware 12 07-06-2007 01:43 AM
on the boot I'm getting message "PCI: Unable to reserve.." but everything is okay? trancephorm Linux - Newbie 0 11-06-2004 07:03 PM
"Unable to open USB device "usb://hp/LaserJet%201000": No such device" lordshipmayhem Mandriva 2 08-08-2004 04:56 PM
FTP error message"device is full" jeffpoulsen Linux - Networking 1 10-18-2002 10:20 PM > Forums > Linux Forums > Linux - General

All times are GMT -5. The time now is 05:31 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration