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Thread: HOWTO: CPU Frequency Scaling w/ Kernel Module

  1. #81
    Join Date
    Apr 2005
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    1,334

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    Quote Originally Posted by Rhawi Dantas View Post
    powersave is available just if i put the settings while im using the notebook. If i restart it i wont have powersave and no other options, just ondemand.
    Have you put all the required modules in the /etc/modules?
    ASUS K53S Ubuntu 13.04 64-bit
    ASUS U36jc, Intel Core i5-480M, 2.66GHz, 4Gb, nVidia Optimus Ubuntu 12.04 64-bit
    HP DV6-2113sa, AMD Turion™ II M620, 4Gb, ATI Radeon™ HD 4530; ASUS 1015PX Netbook Ubuntu 12.10 64-bit

  2. #82
    Join Date
    May 2005
    Location
    Brazil
    Beans
    57
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    Thats my /etc/modules
    Code:
    lp
    sbp2
    i8k force=1
    fuse
    cpufreq_conservative
    cpufreq_ondemand
    cpufreq_powersave
    cpufreq_stats
    cpufreq_userspace
    acpi-cpufreq
    Any ideas ?

  3. #83
    Join Date
    May 2005
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    Brazil
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    57
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    bump bump bump

  4. #84
    Join Date
    Aug 2007
    Location
    Florence, SC, USA
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    16
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    I'm having some trouble getting the instructions on the first page of this thread to work. I've got a Toshiba laptop running a Celeron M processor, running Feisty 7.04 kernel vers. 2.6.20-16-generic. None of the kernel module modprobe commands are able to find anything. If anyone has any experience doing this on a Celeron M i'd really appreciate any input.

    Thanks,
    TIM

  5. #85
    Join Date
    Sep 2007
    Location
    Finland
    Beans
    50
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    I'm also having problems with a Dell.
    When I restart the notebook its not with the previous settings anymore. I need to edit again the scaling_max_freq to 10000 so its showing...

    Weird thing though, is there anyone who's having the same stuff

  6. #86
    Join Date
    May 2007
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    11

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    Quote Originally Posted by HangLoose View Post
    I'm also having problems with a Dell.
    When I restart the notebook its not with the previous settings anymore. I need to edit again the scaling_max_freq to 10000 so its showing...

    Weird thing though, is there anyone who's having the same stuff
    I recently reinstalled my laptop and I've been having the same problem. I didn't do anything different than the first time I installed cpufreq but it loses setting every time.

    And the ondemand thing freezes up then suddenly skips ahead when I'm working on demanding programs, which is annoying when you work with video.

    Has anyone found a workaround?

  7. #87
    Join Date
    May 2007
    Beans
    11

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    Quote Originally Posted by rebelDNS View Post
    I recently reinstalled my laptop and I've been having the same problem. I didn't do anything different than the first time I installed cpufreq but it loses setting every time.

    And the ondemand thing freezes up then suddenly skips ahead when I'm working on demanding programs, which is annoying when you work with video.

    Has anyone found a workaround?
    Hey I figured it out!

    after seeing this and editing the instructions for the latest version:
    http://ubuntuforums.org/showthread.php?t=541794

    Do this:
    Basically, hit alt + f2 and type in gconf-editor and run

    click on "apps" then "gnome-power-management" and then "cpufreq"

    right click on the "cpufreq_ac_policy" and "cpufreq_battery_policy" and select "edit key" then change it to whatever governor/setting you want to be default (as in whatever you type in after "cpufreq-set -g TYPE-THIS-PART-IN")

  8. #88
    Join Date
    Apr 2006
    Location
    Florida, USA
    Beans
    212
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    I attempted to enable cpufreqd, failed, and tried to revert back to powernowd.

    Now, once I try to shutdown, reboot, or anything, my fan kicks on like a jet engine and the machine never turns off.

    Help?

  9. #89
    Join Date
    Oct 2007
    Beans
    26

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    Hello,

    On my laptop I only 3 frequency setting cpu!

    This:



    How to add the optional 1200MHZ

    Thanks

    my laptop acer aspire 9300 model.
    Acer Aspire 9305 AWSMI
    Ubuntu 7.10 - Gutsy Gibbon

  10. #90
    Join Date
    Apr 2006
    Beans
    Hidden!

    Re: HOWTO: CPU Frequency Scaling w/ Kernel Module

    Scaling was working for me for quite a while. Somewhere it just quit. I think it was around the time I upgraded to 7.10. If you look at the output below everything looks good exept for this.

    current policy: frequency should be within 1000 MHz and 1000 MHz

    notice it is the same on each of the processors.

    How can I set this so it would be between 1000 Mhz and 1660 Mhz.

    David

    david@DsLNVO:~$ cpufreq-info
    cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
    Report errors and bugs to linux@brodo.de, please.
    analyzing CPU 0:
    driver: acpi-cpufreq
    CPUs which need to switch frequency at the same time: 0 1
    hardware limits: 1000 MHz - 1.67 GHz
    available frequency steps: 1.67 GHz, 1.33 GHz, 1000 MHz
    available cpufreq governors: userspace, powersave, ondemand, conservative, performance
    current policy: frequency should be within 1000 MHz and 1000 MHz.
    The governor "ondemand" may decide which speed to use
    within this range.
    current CPU frequency is 1000 MHz.
    analyzing CPU 1:
    driver: acpi-cpufreq
    CPUs which need to switch frequency at the same time: 0 1
    hardware limits: 1000 MHz - 1.67 GHz
    available frequency steps: 1.67 GHz, 1.33 GHz, 1000 MHz
    available cpufreq governors: userspace, powersave, ondemand, conservative, performance
    current policy: frequency should be within 1000 MHz and 1000 MHz.
    The governor "ondemand" may decide which speed to use
    within this range.
    current CPU frequency is 1000 MHz.

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