LinuxQuestions.org
Register a domain and help support LQ
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Laptop and Netbook
User Name
Password
Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

Notices

Reply
 
Search this Thread
Old 06-10-2011, 10:38 AM   #1
cyberbill79
LQ Newbie
 
Registered: Jun 2011
Location: NH, USA
Distribution: Debian, Ubuntu, & Linux Mint
Posts: 1

Rep: Reputation: Disabled
Cool Compaq CQ62-209WM No Fan Speed Control


Hello, Long time listener, first time caller.

I have a Compaq Presario CQ62-209WM [specs] and am using Linux Mint 10 - Julia (Ubuntu 10.10 Maverick).

The fan is a 3-wire, so voltage controlled, not PWM. lm-sensors3 (3.1.2 distributed with Julia) only recognizes a couple of temp sensors, and no fan outputs. However, it runs at a higher speed when first started or when in the BIOS, then drops RPMs when it gets into Linux. This causes it to overheat when at all taxed resulting in locking up or rebooting.

I have 'googled' the h*ll out of this with no luck.

Am looking for any and all help on this problem. Will provide any info needed.
Thank you,
-Bill
 
Old 06-16-2011, 03:52 PM   #2
markush
Senior Member
 
Registered: Apr 2007
Location: Germany
Distribution: Slackware
Posts: 3,970

Rep: Reputation: 848Reputation: 848Reputation: 848Reputation: 848Reputation: 848Reputation: 848Reputation: 848
Hello cyberbill79, welcome to LQ,

I'd recommend to check if the module "powernow_k8" is loaded.
Code:
lsmod | grep powernow
if it's not loaded you can load it with the modprobe command
Code:
sudo modprobe powernow_k8
this module is responsible for managing the CPU-frequency.

If the module is loaded, you may use the cpufreq-info command in order to check your CPU-frequency and cpufreq-set to configure the frequency.

If you have the necessary kernelmodules loaded (hopefully available for your kernel) you can configure the cpu-frequency-governor for "conservative" this will keep the frequency small and the fan will have less to do.

I have (with Slackware) configured the cpufrequency this way:
Code:
cpufreq-set --cpu 0 --governor conservative
cpufreq-set --cpu 1 --governor conservative
in my /etc/rc.d/rc.local file (this has to be done in a slightly other way in Mint, but the commands will also work on the commandline (as root or with sudo). Here my output of the cpufreq-info command
Code:
markus@samsung:/usr/local/vmwin/vm_win$ cpufreq-info 
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
  driver: powernow-k8
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 8.0 us.
  hardware limits: 800 MHz - 2.10 GHz
  available frequency steps: 2.10 GHz, 1.50 GHz, 800 MHz
  available cpufreq governors: conservative, ondemand, userspace
  current policy: frequency should be within 800 MHz and 2.10 GHz.
                  The governor "conservative" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
analyzing CPU 1:
  driver: powernow-k8
  CPUs which run at the same hardware frequency: 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 8.0 us.
  hardware limits: 800 MHz - 2.10 GHz
  available frequency steps: 2.10 GHz, 1.50 GHz, 800 MHz
  available cpufreq governors: conservative, ondemand, userspace
  current policy: frequency should be within 800 MHz and 2.10 GHz.
                  The governor "conservative" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
Markus
 
  


Reply


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 Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to control cpu fan speed? no fan control with BIOS, acpi, lm-sensors startover Linux - Hardware 20 01-08-2011 03:18 AM
ACPI or lm-sensors fan control on Sony Vaio (fan runs at full speed) roanm Linux - Hardware 7 11-14-2009 07:37 PM
chassis fan speed control (case fan) wastingtime Linux - Hardware 12 12-02-2007 07:08 PM
Compaq Prolaint ML370 G1, Fan Speed control driver NX-01 Linux - Hardware 0 12-12-2005 09:15 PM
howto: control CPU fan speed and Northbridge fan speed? hedpe Linux - Software 2 04-18-2005 02:18 AM


All times are GMT -5. The time now is 08:41 PM.

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